Simple proxying ContentHandler.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@197317 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/tools/ProxyContentHandler.java

@@ -0,0 +1,166 @@
+/*
+ * $Id$
+ * ============================================================================
+ *                    The Apache Software License, Version 1.1
+ * ============================================================================
+ *
+ * Copyright (C) 2004 The Apache Software Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modifica-
+ * tion, 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 acknowledgment: "This product includes software
+ *    developed by the Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself, if
+ *    and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "FOP" 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 name, without prior written permission of the
+ *    Apache Software Foundation.
+ *
+ * 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 (INCLU-
+ * DING, 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 and was originally created by
+ * James Tauber <jtauber@jtauber.com>. For more information on the Apache
+ * Software Foundation, please see <http://www.apache.org/>.
+ */
+package org.apache.fop.tools;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.ContentHandler;
+import org.xml.sax.Locator;
+import org.xml.sax.SAXException;
+
+/**
+ * Simple proxying ContentHandler. It simply forwards all SAX events to its
+ * delegate ContentHandler.
+ */
+public class ProxyContentHandler implements ContentHandler {
+
+    private ContentHandler delegate;
+    
+    /**
+     * Constructs a new ProxyContentHandler
+     * @param delegate the ContentHandler that receives all SAX events.  
+     */
+    public ProxyContentHandler(ContentHandler delegate) {
+        super();
+        this.delegate = delegate;
+    }
+
+    /**
+     * @return the delegate ContentHandler
+     */
+    public ContentHandler getDelegate() {
+        return this.delegate;
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#startDocument()
+     */
+    public void startDocument() throws SAXException {
+        getDelegate().startDocument();
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#endDocument()
+     */
+    public void endDocument() throws SAXException {
+        getDelegate().endDocument();
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#characters(char[], int, int)
+     */
+    public void characters(char[] ch, int start, int length)
+            throws SAXException {
+        getDelegate().characters(ch, start, length);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#ignorableWhitespace(char[], int, int)
+     */
+    public void ignorableWhitespace(char[] ch, int start, int length)
+            throws SAXException {
+        getDelegate().ignorableWhitespace(ch, start, length);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
+     */
+    public void startElement(String namespaceURI,
+            String localName, String qName, Attributes atts)
+                throws SAXException {
+        getDelegate().startElement(namespaceURI, localName, qName, atts);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#endElement(java.lang.String, java.lang.String, java.lang.String)
+     */
+    public void endElement(String namespaceURI, String localName, String qName)
+            throws SAXException {
+        getDelegate().endElement(namespaceURI, localName, qName);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#skippedEntity(java.lang.String)
+     */
+    public void skippedEntity(String name) throws SAXException {
+        getDelegate().skippedEntity(name);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#setDocumentLocator(org.xml.sax.Locator)
+     */
+    public void setDocumentLocator(Locator locator) {
+        getDelegate().setDocumentLocator(locator);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#processingInstruction(java.lang.String, java.lang.String)
+     */
+    public void processingInstruction(String target, String data)
+            throws SAXException {
+        getDelegate().processingInstruction(target, data);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#startPrefixMapping(java.lang.String, java.lang.String)
+     */
+    public void startPrefixMapping(String prefix, String uri)
+            throws SAXException {
+        getDelegate().startPrefixMapping(prefix, uri);
+    }
+
+    /**
+     * @see org.xml.sax.ContentHandler#endPrefixMapping(java.lang.String)
+     */
+    public void endPrefixMapping(String prefix) throws SAXException {
+        getDelegate().endPrefixMapping(prefix);
+    }
+
+}