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Initial implementation of FilterSets. I've done some major surgery on the 

patch from PR1545. There is also more to come.

PR:	1545
Submitted by:	Michael McCallum <gholam@xtra.co.nz>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@269459 13f79535-47bb-0310-9956-ffa450edef68
master
Conor MacNeill 24 years ago
parent
40a387aa61
commit
fa21d1fe0c
6 changed files with 769 additions and 162 deletions
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  1. +271
    -0
      src/main/org/apache/tools/ant/FileUtils.java
  2. +38
    -155
      src/main/org/apache/tools/ant/Project.java
  3. +30
    -6
      src/main/org/apache/tools/ant/taskdefs/Copy.java
  4. +11
    -1
      src/main/org/apache/tools/ant/taskdefs/Move.java
  5. +417
    -0
      src/main/org/apache/tools/ant/types/FilterSet.java
  6. +2
    -0
      src/main/org/apache/tools/ant/types/defaults.properties

+ 271
- 0
src/main/org/apache/tools/ant/FileUtils.java View File

@@ -0,0 +1,271 @@
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/

package org.apache.tools.ant;

import java.io.*;
import java.util.*;

import org.apache.tools.ant.types.FilterSet;

/**
* Central representation of an Ant project. This class defines a
* Ant project with all of it's targets and tasks. It also provides
* the mechanism to kick off a build using a particular target name.
* <p>
* This class also encapsulates methods which allow Files to be refered
* to using abstract path names which are translated to native system
* file paths at runtime as well as defining various project properties.
*
* @author duncan@x180.com
* @author <a href="mailto:conor@apache.org">Conor MacNeill</a>
*/
public class FileUtils {
private static Object lockReflection = new Object();
private static java.lang.reflect.Method setLastModified = null;

/**
* Convienence method to copy a file from a source to a destination.
* No filtering is performed.
*
* @throws IOException
*/
public static void copyFile(String sourceFile, String destFile) throws IOException {
copyFile(new File(sourceFile), new File(destFile), null, false, false);
}

/**
* Convienence method to copy a file from a source to a destination
* specifying if token filtering must be used.
*
* @throws IOException
*/
public static void copyFile(String sourceFile, String destFile, FilterSet filterSet)
throws IOException
{
copyFile(new File(sourceFile), new File(destFile), filterSet, false, false);
}

/**
* Convienence method to copy a file from a source to a
* destination specifying if token filtering must be used and if
* source files may overwrite newer destination files.
*
* @throws IOException
*/
public static void copyFile(String sourceFile, String destFile, FilterSet filterSet,
boolean overwrite) throws IOException {
copyFile(new File(sourceFile), new File(destFile), filterSet,
overwrite, false);
}

/**
* Convienence method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* source files may overwrite newer destination files and the
* last modified time of <code>destFile</code> file should be made equal
* to the last modified time of <code>sourceFile</code>.
*
* @throws IOException
*/
public static void copyFile(String sourceFile, String destFile, FilterSet filterSet,
boolean overwrite, boolean preserveLastModified)
throws IOException {
copyFile(new File(sourceFile), new File(destFile), filterSet,
overwrite, preserveLastModified);
}

/**
* Convienence method to copy a file from a source to a destination.
* No filtering is performed.
*
* @throws IOException
*/
public static void copyFile(File sourceFile, File destFile) throws IOException {
copyFile(sourceFile, destFile, null, false, false);
}

/**
* Convienence method to copy a file from a source to a destination
* specifying if token filtering must be used.
*
* @throws IOException
*/
public static void copyFile(File sourceFile, File destFile, FilterSet filterSet)
throws IOException {
copyFile(sourceFile, destFile, filterSet, false, false);
}

/**
* Convienence method to copy a file from a source to a
* destination specifying if token filtering must be used and if
* source files may overwrite newer destination files.
*
* @throws IOException
*/
public static void copyFile(File sourceFile, File destFile, FilterSet filterSet,
boolean overwrite) throws IOException {
copyFile(sourceFile, destFile, filterSet, overwrite, false);
}

/**
* Convienence method to copy a file from a source to a
* destination specifying if token filtering must be used, if
* source files may overwrite newer destination files and the
* last modified time of <code>destFile</code> file should be made equal
* to the last modified time of <code>sourceFile</code>.
*
* @throws IOException
*/
public static void copyFile(File sourceFile, File destFile, FilterSet filterSet,
boolean overwrite, boolean preserveLastModified)
throws IOException {
if (overwrite || !destFile.exists() ||
destFile.lastModified() < sourceFile.lastModified()) {

if (destFile.exists() && destFile.isFile()) {
destFile.delete();
}

// ensure that parent dir of dest file exists!
// not using getParentFile method to stay 1.1 compat
File parent = new File(destFile.getParent());
if (!parent.exists()) {
parent.mkdirs();
}

if (filterSet != null) {
BufferedReader in = new BufferedReader(new FileReader(sourceFile));
BufferedWriter out = new BufferedWriter(new FileWriter(destFile));

int length;
String newline = null;
String line = in.readLine();
while (line != null) {
if (line.length() == 0) {
out.newLine();
} else {
newline = filterSet.replaceTokens(line);
out.write(newline);
out.newLine();
}
line = in.readLine();
}

out.close();
in.close();
} else {
FileInputStream in = new FileInputStream(sourceFile);
FileOutputStream out = new FileOutputStream(destFile);

byte[] buffer = new byte[8 * 1024];
int count = 0;
do {
out.write(buffer, 0, count);
count = in.read(buffer, 0, buffer.length);
} while (count != -1);

in.close();
out.close();
}

if (preserveLastModified) {
setFileLastModified(destFile, sourceFile.lastModified());
}
}
}

/**
* Calls File.setLastModified(long time) in a Java 1.1 compatible way.
*/
public static void setFileLastModified(File file, long time) throws BuildException {
if (Project.getJavaVersion() == Project.JAVA_1_1) {
return;
}
if (setLastModified == null) {
synchronized (lockReflection) {
if (setLastModified == null) {
try {
setLastModified =
java.io.File.class.getMethod("setLastModified",
new Class[] {Long.TYPE});
} catch (NoSuchMethodException nse) {
throw new BuildException("File.setlastModified not in JDK > 1.1?",
nse);
}
}
}
}
Long[] times = new Long[1];
if (time < 0) {
times[0] = new Long(System.currentTimeMillis());
} else {
times[0] = new Long(time);
}
try {
setLastModified.invoke(file, times);
} catch (java.lang.reflect.InvocationTargetException ite) {
Throwable nested = ite.getTargetException();
throw new BuildException("Exception setting the modification time "
+ "of " + file, nested);
} catch (Throwable other) {
throw new BuildException("Exception setting the modification time "
+ "of " + file, other);
}
}

}


+ 38
- 155
src/main/org/apache/tools/ant/Project.java View File

@@ -58,6 +58,8 @@ import java.io.*;
import java.util.*; import java.util.*;
import java.text.*; import java.text.*;


import org.apache.tools.ant.types.FilterSet;

/** /**
* Central representation of an Ant project. This class defines a * Central representation of an Ant project. This class defines a
* Ant project with all of it's targets and tasks. It also provides * Ant project with all of it's targets and tasks. It also provides
@@ -91,8 +93,8 @@ public class Project {
public static final String JAVA_1_3 = "1.3"; public static final String JAVA_1_3 = "1.3";
public static final String JAVA_1_4 = "1.4"; public static final String JAVA_1_4 = "1.4";


public static final String TOKEN_START = "@";
public static final String TOKEN_END = "@";
public static final String TOKEN_START = FilterSet.DEFAULT_TOKEN_START;
public static final String TOKEN_END = FilterSet.DEFAULT_TOKEN_END;


private String name; private String name;


@@ -103,14 +105,11 @@ public class Project {
private Hashtable dataClassDefinitions = new Hashtable(); private Hashtable dataClassDefinitions = new Hashtable();
private Hashtable taskClassDefinitions = new Hashtable(); private Hashtable taskClassDefinitions = new Hashtable();
private Hashtable targets = new Hashtable(); private Hashtable targets = new Hashtable();
private Hashtable filters = new Hashtable();
private FilterSet globalFilterSet = new FilterSet();
private File baseDir; private File baseDir;


private Vector listeners = new Vector(); private Vector listeners = new Vector();


private static java.lang.reflect.Method setLastModified = null;
private static Object lockReflection = new Object();

/** The system classloader - may be null */ /** The system classloader - may be null */
private ClassLoader systemLoader = null; private ClassLoader systemLoader = null;


@@ -254,6 +253,12 @@ public class Project {
fireMessageLogged(target, msg, msgLevel); fireMessageLogged(target, msg, msgLevel);
} }


public FilterSet getGlobalFilterSet() {
return globalFilterSet;
}
public void setProperty(String name, String value) { public void setProperty(String name, String value) {
// command line properties take precedence // command line properties take precedence
if (null != userProperties.get(name)) { if (null != userProperties.get(name)) {
@@ -315,15 +320,19 @@ public class Project {
return name; return name;
} }


/** @deprecated */
public void addFilter(String token, String value) { public void addFilter(String token, String value) {
if (token == null) return;
log("Setting token to filter: " + token + " -> "
+ value, MSG_DEBUG);
this.filters.put(token, value);
if (token == null) {
return;
}
globalFilterSet.addFilter(new FilterSet.Filter(token, value));
} }


/** @deprecated */
public Hashtable getFilters() { public Hashtable getFilters() {
return filters;
// we need to build the hashtable dynamically
return globalFilterSet.getFilterHash();
} }


// match basedir attribute in xml // match basedir attribute in xml
@@ -505,6 +514,9 @@ public class Project {
} else { } else {
o = ctor.newInstance(new Object[] {this}); o = ctor.newInstance(new Object[] {this});
} }
if (o instanceof ProjectComponent) {
((ProjectComponent)o).setProject(this);
}
String msg = " +DataType: " + typeName; String msg = " +DataType: " + typeName;
log (msg, MSG_DEBUG); log (msg, MSG_DEBUG);
return o; return o;
@@ -674,9 +686,11 @@ public class Project {
* No filtering is performed. * No filtering is performed.
* *
* @throws IOException * @throws IOException
*
* @deprecated
*/ */
public void copyFile(String sourceFile, String destFile) throws IOException { public void copyFile(String sourceFile, String destFile) throws IOException {
copyFile(new File(sourceFile), new File(destFile), false);
FileUtils.copyFile(sourceFile, destFile);
} }


/** /**
@@ -686,9 +700,8 @@ public class Project {
* @throws IOException * @throws IOException
*/ */
public void copyFile(String sourceFile, String destFile, boolean filtering) public void copyFile(String sourceFile, String destFile, boolean filtering)
throws IOException
{
copyFile(new File(sourceFile), new File(destFile), filtering);
throws IOException {
FileUtils.copyFile(sourceFile, destFile, filtering ? globalFilterSet : null);
} }


/** /**
@@ -700,8 +713,7 @@ public class Project {
*/ */
public void copyFile(String sourceFile, String destFile, boolean filtering, public void copyFile(String sourceFile, String destFile, boolean filtering,
boolean overwrite) throws IOException { boolean overwrite) throws IOException {
copyFile(new File(sourceFile), new File(destFile), filtering,
overwrite);
FileUtils.copyFile(sourceFile, destFile, filtering ? globalFilterSet : null, overwrite);
} }


/** /**
@@ -716,8 +728,8 @@ public class Project {
public void copyFile(String sourceFile, String destFile, boolean filtering, public void copyFile(String sourceFile, String destFile, boolean filtering,
boolean overwrite, boolean preserveLastModified) boolean overwrite, boolean preserveLastModified)
throws IOException { throws IOException {
copyFile(new File(sourceFile), new File(destFile), filtering,
overwrite, preserveLastModified);
FileUtils.copyFile(sourceFile, destFile, filtering ? globalFilterSet : null,
overwrite, preserveLastModified);
} }


/** /**
@@ -727,7 +739,7 @@ public class Project {
* @throws IOException * @throws IOException
*/ */
public void copyFile(File sourceFile, File destFile) throws IOException { public void copyFile(File sourceFile, File destFile) throws IOException {
copyFile(sourceFile, destFile, false);
FileUtils.copyFile(sourceFile, destFile);
} }


/** /**
@@ -738,7 +750,7 @@ public class Project {
*/ */
public void copyFile(File sourceFile, File destFile, boolean filtering) public void copyFile(File sourceFile, File destFile, boolean filtering)
throws IOException { throws IOException {
copyFile(sourceFile, destFile, filtering, false);
FileUtils.copyFile(sourceFile, destFile, filtering ? globalFilterSet : null);
} }


/** /**
@@ -750,7 +762,7 @@ public class Project {
*/ */
public void copyFile(File sourceFile, File destFile, boolean filtering, public void copyFile(File sourceFile, File destFile, boolean filtering,
boolean overwrite) throws IOException { boolean overwrite) throws IOException {
copyFile(sourceFile, destFile, filtering, overwrite, false);
FileUtils.copyFile(sourceFile, destFile, filtering ? globalFilterSet : null, overwrite);
} }


/** /**
@@ -765,63 +777,8 @@ public class Project {
public void copyFile(File sourceFile, File destFile, boolean filtering, public void copyFile(File sourceFile, File destFile, boolean filtering,
boolean overwrite, boolean preserveLastModified) boolean overwrite, boolean preserveLastModified)
throws IOException { throws IOException {
if (overwrite || !destFile.exists() ||
destFile.lastModified() < sourceFile.lastModified()) {

if (destFile.exists() && destFile.isFile()) {
destFile.delete();
}

log("Copy: " + sourceFile.getAbsolutePath() + " -> "
+ destFile.getAbsolutePath(), MSG_VERBOSE);

// ensure that parent dir of dest file exists!
// not using getParentFile method to stay 1.1 compat
File parent = new File(destFile.getParent());
if (!parent.exists()) {
parent.mkdirs();
}

if (filtering) {
BufferedReader in = new BufferedReader(new FileReader(sourceFile));
BufferedWriter out = new BufferedWriter(new FileWriter(destFile));

int length;
String newline = null;
String line = in.readLine();
while (line != null) {
if (line.length() == 0) {
out.newLine();
} else {
newline = replace(line, filters);
out.write(newline);
out.newLine();
}
line = in.readLine();
}

out.close();
in.close();
} else {
FileInputStream in = new FileInputStream(sourceFile);
FileOutputStream out = new FileOutputStream(destFile);

byte[] buffer = new byte[8 * 1024];
int count = 0;
do {
out.write(buffer, 0, count);
count = in.read(buffer, 0, buffer.length);
} while (count != -1);

in.close();
out.close();
}

if (preserveLastModified) {
setFileLastModified(destFile, sourceFile.lastModified());
}
}
FileUtils.copyFile(sourceFile, destFile, filtering ? globalFilterSet : null,
overwrite, preserveLastModified);
} }


/** /**
@@ -833,82 +790,8 @@ public class Project {
+ " in JDK 1.1", Project.MSG_WARN); + " in JDK 1.1", Project.MSG_WARN);
return; return;
} }
if (setLastModified == null) {
synchronized (lockReflection) {
if (setLastModified == null) {
try {
setLastModified =
java.io.File.class.getMethod("setLastModified",
new Class[] {Long.TYPE});
} catch (NoSuchMethodException nse) {
throw new BuildException("File.setlastModified not in JDK > 1.1?",
nse);
}
}
}
}
Long[] times = new Long[1];
if (time < 0) {
times[0] = new Long(System.currentTimeMillis());
} else {
times[0] = new Long(time);
}
try {
log("Setting modification time for " + file, MSG_VERBOSE);
setLastModified.invoke(file, times);
} catch (java.lang.reflect.InvocationTargetException ite) {
Throwable nested = ite.getTargetException();
throw new BuildException("Exception setting the modification time "
+ "of " + file, nested);
} catch (Throwable other) {
throw new BuildException("Exception setting the modification time "
+ "of " + file, other);
}
}

/**
* Does replacement on the given string using the given token table.
*
* @returns the string with the token replaced.
*/
private String replace(String s, Hashtable tokens) {
int index = s.indexOf(TOKEN_START);

if (index > -1) {
try {
StringBuffer b = new StringBuffer();
int i = 0;
String token = null;
String value = null;

do {
int endIndex = s.indexOf(TOKEN_END,
index + TOKEN_START.length() + 1);
if (endIndex == -1) {
break;
}
token = s.substring(index + TOKEN_START.length(), endIndex);
b.append(s.substring(i, index));
if (tokens.containsKey(token)) {
value = (String) tokens.get(token);
log("Replacing: " + TOKEN_START + token + TOKEN_END + " -> " + value, MSG_VERBOSE);
b.append(value);
i = index + TOKEN_START.length() + token.length() + TOKEN_END.length();
} else {
// just append TOKEN_START and search further
b.append(TOKEN_START);
i = index + TOKEN_START.length();
}
} while ((index = s.indexOf(TOKEN_START, i)) > -1);

b.append(s.substring(i));
return b.toString();
} catch (StringIndexOutOfBoundsException e) {
return s;
}
} else {
return s;
}
FileUtils.setFileLastModified(file, time);
log("Setting modification time for " + file, MSG_VERBOSE);
} }


/** /**


+ 30
- 6
src/main/org/apache/tools/ant/taskdefs/Copy.java View File

@@ -73,6 +73,7 @@ import java.util.*;
* *
* @author Glenn McAllister <a href="mailto:glennm@ca.ibm.com">glennm@ca.ibm.com</a> * @author Glenn McAllister <a href="mailto:glennm@ca.ibm.com">glennm@ca.ibm.com</a>
* @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a> * @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a>
* @author <A href="gholam@xtra.co.nz">Michael McCallum</A>
*/ */
public class Copy extends Task { public class Copy extends Task {
protected File file = null; // the source file protected File file = null; // the source file
@@ -91,7 +92,8 @@ public class Copy extends Task {
protected Hashtable dirCopyMap = new Hashtable(); protected Hashtable dirCopyMap = new Hashtable();


protected Mapper mapperElement = null; protected Mapper mapperElement = null;

private Vector filterSets = new Vector();
/** /**
* Sets a single source file to copy. * Sets a single source file to copy.
*/ */
@@ -113,6 +115,15 @@ public class Copy extends Task {
this.destDir = destDir; this.destDir = destDir;
} }


/**
* Create a nested filterset
*/
public FilterSet createFilterSet() {
FilterSet filterSet = new FilterSet();
filterSets.addElement(filterSet);
return filterSet;
}
/** /**
* Give the copied files the same last modified time as the original files. * Give the copied files the same last modified time as the original files.
*/ */
@@ -120,6 +131,15 @@ public class Copy extends Task {
preserveLastModified = Project.toBoolean(preserve); preserveLastModified = Project.toBoolean(preserve);
} }


/**
* Get the filtersets being applied to this operation.
*
* @return a vector of FilterSet objects
*/
protected Vector getFilterSets() {
return filterSets;
}
/** /**
* Sets filtering. * Sets filtering.
*/ */
@@ -338,11 +358,15 @@ public class Copy extends Task {
try { try {
log("Copying " + fromFile + " to " + toFile, verbosity); log("Copying " + fromFile + " to " + toFile, verbosity);
project.copyFile(fromFile,
toFile,
filtering,
forceOverwrite,
preserveLastModified);
FilterSet executionFilterSet = new FilterSet();
if (filtering) {
executionFilterSet.addFilterSet(project.getGlobalFilterSet());
}
for (Enumeration filterEnum = filterSets.elements(); filterEnum.hasMoreElements();) {
executionFilterSet.addFilterSet((FilterSet)filterEnum.nextElement());
}
FileUtils.copyFile(fromFile, toFile, executionFilterSet,
forceOverwrite, preserveLastModified);
} catch (IOException ioe) { } catch (IOException ioe) {
String msg = "Failed to copy " + fromFile + " to " + toFile String msg = "Failed to copy " + fromFile + " to " + toFile
+ " due to " + ioe.getMessage(); + " due to " + ioe.getMessage();


+ 11
- 1
src/main/org/apache/tools/ant/taskdefs/Move.java View File

@@ -100,7 +100,17 @@ public class Move extends Copy {


try { try {
log("Moving " + fromFile + " to " + toFile, verbosity); log("Moving " + fromFile + " to " + toFile, verbosity);
project.copyFile(fromFile, toFile, filtering, forceOverwrite);
FilterSet executionFilterSet = new FilterSet();
if (filtering) {
executionFilterSet.addFilterSet(project.getGlobalFilterSet());
}
for (Enumeration filterEnum = getFilterSets().elements(); filterEnum.hasMoreElements();) {
executionFilterSet.addFilterSet((FilterSet)filterEnum.nextElement());
}
FileUtils.copyFile(fromFile, toFile, executionFilterSet,
forceOverwrite);

File f = new File(fromFile); File f = new File(fromFile);
if (!f.delete()) { if (!f.delete()) {
throw new BuildException("Unable to delete file " + f.getAbsolutePath()); throw new BuildException("Unable to delete file " + f.getAbsolutePath());


+ 417
- 0
src/main/org/apache/tools/ant/types/FilterSet.java View File

@@ -0,0 +1,417 @@
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.types;

// java io classes
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

// java util classes
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;
import java.util.Vector;

// ant classes
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;

/**
* A set of filters to be applied to something.
*
* A filter set may have starttoken and endtokens defined.
*
* @author <A href="mailto:gholam@xtra.co.nz"> Michael McCallum </A>
* @created 14 March 2001
*/
public class FilterSet extends DataType {
/**
* Individual filter component of filterset
*
* @author Michael McCallum
* @created 14 March 2001
*/
public static class Filter {
/** Token which will be replaced in the filter operation */
String token;
/** The value which will replace the token in the filtering operation */
String value;
/**
* Constructor for the Filter object
*
* @param token The token which will be replaced when filtering
* @param value The value which will replace the token when filtering
*/
public Filter(String token, String value) {
this.token = token;
this.value = value;
}
/**
* No argument conmstructor
*/
public Filter() {
}
/**
* Sets the Token attribute of the Filter object
*
* @param token The new Token value
*/
public void setToken( String token ) {
this.token = token;
}
/**
* Sets the Value attribute of the Filter object
*
* @param value The new Value value
*/
public void setValue( String value ) {
this.value = value;
}
/**
* Gets the Token attribute of the Filter object
*
* @return The Token value
*/
public String getToken() {
return token;
}
/**
* Gets the Value attribute of the Filter object
*
* @return The Value value
*/
public String getValue() {
return value;
}
}
/**
* The filtersfile nested element.
*
* @author Michael McCallum
* @created Thursday, April 19, 2001
*/
public class FiltersFile {
/**
* Constructor for the Filter object
*/
public FiltersFile() {
}
/**
* Sets the file from which filters will be read.
*
* @param file the file from which filters will be read.
*/
public void setFile(File file) {
readFiltersFromFile(file);
}
}
/** The default token start string */
public static final String DEFAULT_TOKEN_START = "@";
/** The default token end string */
public static final String DEFAULT_TOKEN_END = "@";
private String startOftoken = DEFAULT_TOKEN_START;
private String endOftoken = DEFAULT_TOKEN_END;
/**
* List of ordered filters and filter files.
*/
private Vector filters = new Vector();
public FilterSet() {
}
/**
* Create a Filterset from another filterset
*
* @param filterset the filterset upon which this filterset will be based.
*/
protected FilterSet(FilterSet filterset) {
super();
this.filters = (Vector)filterset.getFilters().clone();
}

protected Vector getFilters() {
if (isReference()) {
return getRef().getFilters();
}
return filters;
}

protected FilterSet getRef() {
return (FilterSet)getCheckedRef(FilterSet.class, "filterset");
}
/**
* Gets the filter hash of the FilterSet.
*
* @return The hash of the tokens and values for quick lookup.
*/
public Hashtable getFilterHash() {
int filterSize = getFilters().size();
Hashtable filterHash = new Hashtable(filterSize);
for (Enumeration e = getFilters().elements(); e.hasMoreElements();) {
Filter filter = (Filter) e.nextElement();
filterHash.put(filter.getToken(), filter.getValue());
}
return filterHash;
}
/**
* set the file containing the filters for this filterset.
*
* @param filtersFile sets the filter fil to read filters for this filter set from.
* @exception BuildException if there is a problem reading the filters
*/
public void setFiltersfile(File filtersFile) throws BuildException {
if (isReference()) {
throw tooManyAttributes();
}
readFiltersFromFile(filtersFile);
}
/**
* The string used to id the beginning of a token.
*
* @param startOfToken The new Begintoken value
*/
public void setBeginToken(String startOfToken) {
if (isReference()) {
throw tooManyAttributes();
}
startOftoken = startOfToken;
}
/**
* The string used to id the end of a token.
*
* @param endOfToken The new Endtoken value
*/
public void setEndToken( String endOfToken ) {
if (isReference()) {
throw tooManyAttributes();
}
endOftoken = endOfToken;
}
/**
* Read the filters from the given file.
*
* @param filtersFile the file from which filters are read
* @exception BuildException Throw a build exception when unable to read the
* file.
*/
public void readFiltersFromFile(File filtersFile) throws BuildException {
if (filtersFile.isFile()) {
log("Reading filters from " + filtersFile, Project.MSG_VERBOSE );
FileInputStream in = null;
try {
Properties props = new Properties();
in = new FileInputStream(filtersFile);
props.load(in);
Enumeration enum = props.propertyNames();
Vector filters = getFilters();
while (enum.hasMoreElements()) {
String strPropName = (String) enum.nextElement();
String strValue = props.getProperty(strPropName);
filters.addElement(new Filter(strPropName, strValue));
}
}
catch (Exception e) {
throw new BuildException( "Could not read filters from file: " + filtersFile );
}
finally {
if ( in != null ) {
try {
in.close();
}
catch (IOException ioex) {
}
}
}
}
else {
throw new BuildException( "Must specify a file not a directory in the filtersfile attribute:" + filtersFile );
}
}
/**
* Does replacement on the given string with token matching.
* This uses the defined starttoken and endtoken values which default to @ for both.
*
* @param line The line to process the tokens in.
* @return The string with the tokens replaced.
*/
public String replaceTokens(String line) {
int index = line.indexOf(startOftoken);
if (index > -1) {
Hashtable tokens = getFilterHash();
try {
StringBuffer b = new StringBuffer();
int i = 0;
String token = null;
String value = null;
do {
int endIndex = line.indexOf(endOftoken, index + startOftoken.length() + 1 );
if (endIndex == -1) {
break;
}
token = line.substring(index + startOftoken.length(), endIndex );
b.append(line.substring(i, index));
if (tokens.containsKey(token)) {
value = (String)tokens.get(token);
log( "Replacing: " + startOftoken + token + endOftoken + " -> " + value, Project.MSG_VERBOSE );
b.append(value);
i = index + startOftoken.length() + token.length() + endOftoken.length();
}
else {
// just append startOftoken and search further
b.append(startOftoken);
i = index + startOftoken.length();
}
} while ((index = line.indexOf( startOftoken, i )) > -1 );
b.append(line.substring(i));
return b.toString();
}
catch (StringIndexOutOfBoundsException e) {
return line;
}
}
else {
return line;
}
}
/**
* Create a new filter
*
* @param the filter to be added
*/
public void addFilter(Filter filter) {
if (isReference()) {
throw noChildrenAllowed();
}
filters.addElement(filter);
}
/**
* Create a new FiltersFile
*
* @return The filter that was created.
*/
public FiltersFile createFiltersfile() {
if (isReference()) {
throw noChildrenAllowed();
}
return new FiltersFile();
}
/**
* Add a new filter made from the given token and value.
*
* @param token The token for the new filter.
* @param value The value for the new filter.
*/
public void addFilter(String token, String value) {
if (isReference()) {
throw noChildrenAllowed();
}
filters.addElement(new Filter(token, value));
}
/**
* Add a Filterset to this filter set
*
* @param filterSet the filterset to be added to this filterset
*/
public void addFilterSet(FilterSet filterSet) {
if (isReference()) {
throw noChildrenAllowed();
}
for (Enumeration e = filterSet.getFilters().elements(); e.hasMoreElements();) {
filters.addElement((Filter)e.nextElement());
}
}
/**
* Test to see if this filter set it empty.
*
* @return Return true if there are filter in this set otherwise false.
*/
public boolean hasFilters() {
return getFilters().size() > 0;
}
}



+ 2
- 0
src/main/org/apache/tools/ant/types/defaults.properties View File

@@ -2,3 +2,5 @@ path=org.apache.tools.ant.types.Path
fileset=org.apache.tools.ant.types.FileSet fileset=org.apache.tools.ant.types.FileSet
patternset=org.apache.tools.ant.types.PatternSet patternset=org.apache.tools.ant.types.PatternSet
mapper=org.apache.tools.ant.types.Mapper mapper=org.apache.tools.ant.types.Mapper
filterset=org.apache.tools.ant.types.FilterSet


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