@@ -65,6 +65,7 @@ import org.apache.tools.ant.types.EnumeratedAttribute;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.util.FileUtils;
import org.apache.tools.ant.util.StringUtils;
/**
* Will set the given property if the requested resource is available at runtime.
@@ -159,32 +160,38 @@ public class Available extends Task implements Condition {
public void execute() throws BuildException {
if (property == null) {
throw new BuildException("property attribute is required", location);
throw new BuildException("property attribute is required",
location);
}
isTask = true;
if (eval()) {
String lSep = System.getProperty("line.separator");
if (null != project.getProperty(property)) {
log("DEPRECATED - <available> used to override an existing"
+ " property."
+ lSep
+ " Build file should not reuse the same property name"
+ " for different values.");
try {
if (eval()) {
if (null != getProject().getProperty(property)) {
log("DEPRECATED - <available> used to override an existing"
+ " property."
+ StringUtils.LINE_SEP
+ " Build file should not reuse the same property"
+ " name for different values.");
}
getProject().setProperty(property, value);
}
this.project.setProperty(property, value);
} finally {
isTask = false;
}
isTask = false;
}
public boolean eval() throws BuildException {
if (classname == null && file == null && resource == null) {
throw new BuildException("At least one of (classname|file|resource) is required", location);
throw new BuildException("At least one of (classname|file|"
+ "resource) is required", location);
}
if (type != null){
if (file == null){
throw new BuildException("The type attribute is only valid when specifying the file attribute.");
throw new BuildException("The type attribute is only valid "
+ "when specifying the file "
+ "attribute.", location);
}
}
@@ -201,13 +208,15 @@ public class Available extends Task implements Condition {
}
if ((classname != null) && !checkClass(classname)) {
log("Unable to load class " + classname + appendix, Project.MSG_VERBOSE);
log("Unable to load class " + classname + appendix,
Project.MSG_VERBOSE);
return false;
}
if ((file != null) && !checkFile()) {
if (type != null) {
log("Unable to find " + type + " " + file + appendix, Project.MSG_VERBOSE);
log("Unable to find " + type + " " + file + appendix,
Project.MSG_VERBOSE);
} else {
log("Unable to find " + file + appendix, Project.MSG_VERBOSE);
}
@@ -215,12 +224,14 @@ public class Available extends Task implements Condition {
}
if ((resource != null) && !checkResource(resource)) {
log("Unable to load resource " + resource + appendix, Project.MSG_VERBOSE);
log("Unable to load resource " + resource + appendix,
Project.MSG_VERBOSE);
return false;
}
if (loader != null) {
loader.cleanup();
loader = null;
}
if (!isTask) {
@@ -230,6 +241,22 @@ public class Available extends Task implements Condition {
return true;
}
/**
* Search for file/directory either either relative to project's
* basedir or in the path given as filepath.
*
* <p>filepath can be a list of directory and/or file names (gen'd
* via <fileset>)</p>
*
* <p>look for:</p><ul>
* <li>full-pathname specified == path in list</li>
* <li>full-pathname specified == parent dir of path in list</li>
* <li>simple name specified == path in list</li>
* <li>simple name specified == path in list + name</li>
* <li>simple name specified == parent dir + name</li>
* <li>simple name specified == parent of parent dir + name</li>
* </ul>
*/
private boolean checkFile() {
if (filepath == null) {
return checkFile(project.resolveFile(file), file);
@@ -237,19 +264,6 @@ public class Available extends Task implements Condition {
String[] paths = filepath.list();
for(int i = 0; i < paths.length; ++i) {
log("Searching " + paths[i], Project.MSG_DEBUG);
/*
** filepath can be a list of directory and/or
** file names (gen'd via <fileset>)
**
** look for:
** full-pathname specified == path in list
** full-pathname specified == parent dir of path in list
** simple name specified == path in list
** simple name specified == path in list + name
** simple name specified == parent dir + name
** simple name specified == parent of parent dir + name
**
*/
File path = new File(paths[i]);
// ** full-pathname specified == path in list
@@ -318,6 +332,9 @@ public class Available extends Task implements Condition {
return false;
}
/**
* Check if a given file exists and matches the required type.
*/
private boolean checkFile(File f, String text) {
if (type != null) {
if (type.isDir()) {
@@ -338,6 +355,9 @@ public class Available extends Task implements Condition {
return f.exists();
}
/**
* Check if a given resource can be loaded.
*/
private boolean checkResource(String resource) {
if (loader != null) {
return (loader.getResourceAsStream(resource) != null);
@@ -352,25 +372,26 @@ public class Available extends Task implements Condition {
}
}
/**
* Check if a given class can be loaded.
*/
private boolean checkClass(String classname) {
try {
Class requiredClass = null;
if( ignoreSystemclasses ) {
loader = new AntClassLoader(null,getProject(),classpath,false);
if (loader != null) {
if (loader != null) {
try {
loader.findClass(classname);
}
catch( SecurityException se ) {
// class found but restricted name; this is actually
// the case we're looking for, so catch the exception
// and return
} catch( SecurityException se ) {
// class found but restricted name; this is actually
// the case we're looking for, so catch the exception
// and return
return true;
}
}
}
return false;
}
else if (loader != null) {
} else if (loader != null) {
requiredClass = loader.loadClass(classname);
} else {
ClassLoader l = this.getClass().getClassLoader();
Stefan Bodewig