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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 2000-2002 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Ant", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant; |
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import org.apache.tools.ant.helper.*; |
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import java.util.Enumeration; |
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import java.util.Locale; |
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import java.util.Vector; |
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import java.util.Hashtable; |
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import org.xml.sax.AttributeList; |
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import org.xml.sax.Attributes; |
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import org.xml.sax.helpers.AttributeListImpl; |
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import org.xml.sax.helpers.AttributesImpl; |
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/** |
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* Wrapper class that holds the attributes of an element, its children, and |
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* any text within it. It then takes care of configuring that element at |
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* runtime. |
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* |
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* This uses SAX2 and a more flexible substitution mechansim, based on |
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* o.a.tomcat.util.IntrospectionUtil. |
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* |
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* @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a> |
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* @author Costin Manolache |
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*/ |
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public class RuntimeConfigurable2 extends RuntimeConfigurable { |
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/** Name of the element to configure. */ |
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private String elementTag = null; |
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/** List of child element wrappers. */ |
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private Vector children = new Vector(); |
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/** The element to configure. */ |
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private Object wrappedObject = null; |
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/** XML attributes for the element. */ |
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private Attributes attributes; |
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/** Text appearing within the element. */ |
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private StringBuffer characters = new StringBuffer(); |
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/** |
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* Sole constructor creating a wrapper for the specified object. |
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* |
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* @param proxy The element to configure. Must not be <code>null</code>. |
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* @param elementTag The tag name generating this element. |
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* Should not be <code>null</code>. |
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*/ |
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public RuntimeConfigurable2(Object proxy, String elementTag) { |
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super( proxy, elementTag ); |
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wrappedObject = proxy; |
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this.elementTag = elementTag; |
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if( proxy instanceof Task ) |
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((Task)proxy).setRuntimeConfigurableWrapper( this ); |
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} |
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/** |
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* Sets the element to configure. This is used when the real type of |
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* an element isn't known at the time of wrapper creation. |
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* |
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* @param proxy The element to configure. Must not be <code>null</code>. |
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*/ |
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public void setProxy(Object proxy) { |
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wrappedObject = proxy; |
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} |
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public Object getProxy() { |
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return wrappedObject; |
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} |
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/** |
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* Sets the attributes for the wrapped element. |
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* |
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* @param attributes List of attributes defined in the XML for this |
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* element. May be <code>null</code>. |
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* @deprecated It shouldn't be called by anyone except ProjectHelper |
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*/ |
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public void setAttributes(AttributeList attributes) { |
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// this.attributes = new AttributeListImpl(attributes); |
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} |
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public void setAttributes2(Attributes attributes) { |
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this.attributes=new AttributesImpl( attributes ); |
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} |
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/** |
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* Returns the list of attributes for the wrapped element. |
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* |
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* @return An AttributeList representing the attributes defined in the |
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* XML for this element. May be <code>null</code>. |
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* @deprecated only for bkwd compatibility |
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*/ |
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public AttributeList getAttributes() { |
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return sax1Attributes( attributes ); |
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} |
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public Attributes getAttributes2() { |
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return attributes; |
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} |
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public static AttributeList sax1Attributes( Attributes sax2Att ) { |
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AttributeListImpl sax1Att=new AttributeListImpl(); |
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int length = sax2Att.getLength(); |
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if (length > 0) { |
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for (int i = 0; i < length; i++) { |
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// System.out.println("Attributes: " + sax2Att.getQName(i) + " " + |
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// sax2Att.getValue(i)); |
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sax1Att.addAttribute( sax2Att.getQName(i), |
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sax2Att.getType(i), |
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sax2Att.getValue(i)); |
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} |
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} |
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return sax1Att; |
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} |
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/** |
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* Adds a child element to the wrapped element. |
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* |
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* @param child The child element wrapper to add to this one. |
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* Must not be <code>null</code>. |
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*/ |
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public void addChild(RuntimeConfigurable child) { |
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children.addElement(child); |
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} |
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/** |
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* Returns the child wrapper at the specified position within the list. |
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* |
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* @param index The index of the child to return. |
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* |
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* @return The child wrapper at position <code>index</code> within the |
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* list. |
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*/ |
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public RuntimeConfigurable getChild(int index) { |
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return (RuntimeConfigurable) children.elementAt(index); |
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} |
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/** |
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* Adds characters from #PCDATA areas to the wrapped element. |
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* |
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* @param data Text to add to the wrapped element. |
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* Should not be <code>null</code>. |
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*/ |
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public void addText(String data) { |
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characters.append(data); |
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} |
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/** |
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* Adds characters from #PCDATA areas to the wrapped element. |
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* |
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* @param buf A character array of the text within the element. |
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* Must not be <code>null</code>. |
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* @param start The start element in the array. |
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* @param count The number of characters to read from the array. |
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* |
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*/ |
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public void addText(char[] buf, int start, int count) { |
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addText(new String(buf, start, count)); |
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} |
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/** |
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* Returns the tag name of the wrapped element. |
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* |
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* @return The tag name of the wrapped element. This is unlikely |
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* to be <code>null</code>, but may be. |
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*/ |
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public String getElementTag() { |
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return elementTag; |
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} |
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/** |
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* Configures the wrapped element and all its children. |
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* The attributes and text for the wrapped element are configured, |
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* and then each child is configured and added. Each time the |
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* wrapper is configured, the attributes and text for it are |
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* reset. |
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* |
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* If the element has an <code>id</code> attribute, a reference |
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* is added to the project as well. |
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* |
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* @param p The project containing the wrapped element. |
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* Must not be <code>null</code>. |
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* |
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* @exception BuildException if the configuration fails, for instance due |
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* to invalid attributes or children, or text being added to |
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* an element which doesn't accept it. |
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*/ |
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public void maybeConfigure(Project p) throws BuildException { |
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String id = null; |
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if (attributes != null) { |
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PropertyHelper ph=PropertyHelper.getPropertyHelper(p); |
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ph.configure(wrappedObject, attributes, p); |
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id = attributes.getValue("id"); |
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attributes = null; |
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} |
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if (characters.length() != 0) { |
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ProjectHelper.addText(p, wrappedObject, characters.toString()); |
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characters.setLength(0); |
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} |
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Enumeration enum = children.elements(); |
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while (enum.hasMoreElements()) { |
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RuntimeConfigurable2 child |
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= (RuntimeConfigurable2) enum.nextElement(); |
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if (child.wrappedObject instanceof Task) { |
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Task childTask = (Task) child.wrappedObject; |
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childTask.setRuntimeConfigurableWrapper(child); |
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childTask.maybeConfigure(); |
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} else { |
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child.maybeConfigure(p); |
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} |
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ProjectHelper.storeChild(p, wrappedObject, child.wrappedObject, |
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child.getElementTag().toLowerCase(Locale.US)); |
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} |
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if (id != null) { |
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p.addReference(id, wrappedObject); |
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} |
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} |
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} |
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Costin Manolache