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/*
* $Id: PageMasterReference.java,v 1.12 2003/03/06 13:42:41 jeremias Exp $
* ============================================================================
* The Apache Software License, Version 1.1
* ============================================================================
*
* Copyright (C) 1999-2003 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.fo.pagination;
// SAX
import org.xml.sax.Attributes;
// FOP
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.apps.FOPException;
/**
* Base PageMasterReference class. Provides implementation for handling the
* master-reference attribute and containment within a PageSequenceMaster
*/
public abstract class PageMasterReference extends FObj
implements SubSequenceSpecifier {
private String masterName;
/**
* @see org.apache.fop.fo.FONode#FONode(FONode)
*/
public PageMasterReference(FONode parent) {
super(parent);
}
/**
* @see org.apache.fop.fo.FONode#handleAttrs(Attributes)
*/
public void handleAttrs(Attributes attlist) throws FOPException {
super.handleAttrs(attlist);
if (getProperty("master-reference") != null) {
this.masterName = getProperty("master-reference").getString();
}
validateParent(parent);
}
/**
* Returns the "master-reference" attribute of this page master reference
* @return the name of the page master
*/
public String getMasterName() {
return masterName;
}
/**
* Checks that the parent is the right element. The default implementation
* checks for fo:page-sequence-master.
* @param parent parent node
* @throws FOPException If the parent is invalid.
*/
protected void validateParent(FONode parent) throws FOPException {
if (parent.getName().equals("fo:page-sequence-master")) {
PageSequenceMaster pageSequenceMaster = (PageSequenceMaster)parent;
if (getMasterName() == null) {
getLogger().warn(getName()
+ " does not have a master-reference and so is being ignored");
} else {
pageSequenceMaster.addSubsequenceSpecifier(this);
}
} else {
throw new FOPException(getName() + " must be"
+ "child of fo:page-sequence-master, not "
+ parent.getName());
}
}
}
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