001
002 /*
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements. See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership. The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019 /*
020 * $Id: XSLTCSource.java 468653 2006-10-28 07:07:05Z minchau $
021 */
022
023 package org.apache.xalan.xsltc.trax;
024
025 import javax.xml.transform.Source;
026 import javax.xml.transform.stream.StreamSource;
027
028 import org.apache.xalan.xsltc.DOM;
029 import org.apache.xalan.xsltc.StripFilter;
030 import org.apache.xalan.xsltc.compiler.util.ErrorMsg;
031 import org.apache.xalan.xsltc.dom.DOMWSFilter;
032 import org.apache.xalan.xsltc.dom.SAXImpl;
033 import org.apache.xalan.xsltc.dom.XSLTCDTMManager;
034 import org.apache.xalan.xsltc.runtime.AbstractTranslet;
035
036 import org.xml.sax.SAXException;
037
038 /**
039 * @author Morten Jorgensen
040 */
041 public final class XSLTCSource implements Source {
042
043 private String _systemId = null;
044 private Source _source = null;
045 private ThreadLocal _dom = new ThreadLocal();
046
047 /**
048 * Create a new XSLTC-specific source from a system ID
049 */
050 public XSLTCSource(String systemId)
051 {
052 _systemId = systemId;
053 }
054
055 /**
056 * Create a new XSLTC-specific source from a JAXP Source
057 */
058 public XSLTCSource(Source source)
059 {
060 _source = source;
061 }
062
063 /**
064 * Implements javax.xml.transform.Source.setSystemId()
065 * Set the system identifier for this Source.
066 * This Source can get its input either directly from a file (in this case
067 * it will instanciate and use a JAXP parser) or it can receive it through
068 * ContentHandler/LexicalHandler interfaces.
069 * @param systemId The system Id for this Source
070 */
071 public void setSystemId(String systemId) {
072 _systemId = systemId;
073 if (_source != null) {
074 _source.setSystemId(systemId);
075 }
076 }
077
078 /**
079 * Implements javax.xml.transform.Source.getSystemId()
080 * Get the system identifier that was set with setSystemId.
081 * @return The system identifier that was set with setSystemId,
082 * or null if setSystemId was not called.
083 */
084 public String getSystemId() {
085 if (_source != null) {
086 return _source.getSystemId();
087 }
088 else {
089 return(_systemId);
090 }
091 }
092
093 /**
094 * Internal interface which returns a DOM for a given DTMManager and translet.
095 */
096 protected DOM getDOM(XSLTCDTMManager dtmManager, AbstractTranslet translet)
097 throws SAXException
098 {
099 SAXImpl idom = (SAXImpl)_dom.get();
100
101 if (idom != null) {
102 if (dtmManager != null) {
103 idom.migrateTo(dtmManager);
104 }
105 }
106 else {
107 Source source = _source;
108 if (source == null) {
109 if (_systemId != null && _systemId.length() > 0) {
110 source = new StreamSource(_systemId);
111 }
112 else {
113 ErrorMsg err = new ErrorMsg(ErrorMsg.XSLTC_SOURCE_ERR);
114 throw new SAXException(err.toString());
115 }
116 }
117
118 DOMWSFilter wsfilter = null;
119 if (translet != null && translet instanceof StripFilter) {
120 wsfilter = new DOMWSFilter(translet);
121 }
122
123 boolean hasIdCall = (translet != null) ? translet.hasIdCall() : false;
124
125 if (dtmManager == null) {
126 dtmManager = XSLTCDTMManager.newInstance();
127 }
128
129 idom = (SAXImpl)dtmManager.getDTM(source, true, wsfilter, false, false, hasIdCall);
130
131 String systemId = getSystemId();
132 if (systemId != null) {
133 idom.setDocumentURI(systemId);
134 }
135 _dom.set(idom);
136 }
137 return idom;
138 }
139
140 }