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/*
* Copyright (c) 2001-2004 Ant-Contrib project. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.antcontrib.walls;
import java.io.File;
import org.apache.tools.ant.Project;
import org.xml.sax.*;
/**
* Handler for the root element. Its only child must be the "project" element.
*/
class WallsFileHandler extends HandlerBase {
private final CompileWithWalls compilewithwalls;
private File file = null;
private Walls walls = null;
private Locator locator = null;
/**
* @param CompileWithWalls
*/
WallsFileHandler(CompileWithWalls walls, File file) {
this.compilewithwalls = walls;
this.file = file;
}
/**
* Resolves file: URIs relative to the build file.
*
* @param publicId The public identifer, or <code>null</code>
* if none is available. Ignored in this
* implementation.
* @param systemId The system identifier provided in the XML
* document. Will not be <code>null</code>.
*/
public InputSource resolveEntity(String publicId,
String systemId) {
compilewithwalls.log("publicId="+publicId+" systemId="+systemId,
Project.MSG_VERBOSE);
return null;
}
/**
* Handles the start of a project element. A project handler is created
* and initialised with the element name and attributes.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if the tag given is not
* <code>"project"</code>
*/
public void startElement(String name, AttributeList attrs) throws SAXParseException {
if (name.equals("walls")) {
if(attrs.getLength() > 0)
throw new SAXParseException("Error in file="+file.getAbsolutePath()
+", no attributes allowed for walls element", locator);
walls = this.compilewithwalls.createWalls();
} else if (name.equals("package")) {
handlePackage(attrs);
} else {
throw new SAXParseException("Error in file="+file.getAbsolutePath()
+", Unexpected element \"" + name + "\"", locator);
}
}
private void handlePackage(AttributeList attrs) throws SAXParseException {
if(walls == null)
throw new SAXParseException("Error in file="+file.getAbsolutePath()
+", package element must be nested in a walls element", locator);
String name = attrs.getValue("name");
String thePackage = attrs.getValue("package");
String depends = attrs.getValue("depends");
if(name == null)
throw new SAXParseException("Error in file="+file.getAbsolutePath()
+", package element must contain the 'name' attribute", locator);
else if(thePackage == null)
throw new SAXParseException("Error in file="+file.getAbsolutePath()
+", package element must contain the 'package' attribute", locator);
Package p = new Package();
p.setName(name);
p.setPackage(thePackage);
if(depends != null)
p.setDepends(depends);
walls.addConfiguredPackage(p);
}
/**
* Sets the locator in the project helper for future reference.
*
* @param locator The locator used by the parser.
* Will not be <code>null</code>.
*/
public void setDocumentLocator(Locator locator) {
this.locator = locator;
}
}
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