001: /*
002: * Licensed to the Apache Software Foundation (ASF) under one
003: * or more contributor license agreements. See the NOTICE file
004: * distributed with this work for additional information
005: * regarding copyright ownership. The ASF licenses this file
006: * to you under the Apache License, Version 2.0 (the
007: * "License"); you may not use this file except in compliance
008: * with the License. You may obtain a copy of the License at
009: *
010: * http://www.apache.org/licenses/LICENSE-2.0
011: *
012: * Unless required by applicable law or agreed to in writing,
013: * software distributed under the License is distributed on an
014: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015: * KIND, either express or implied. See the License for the
016: * specific language governing permissions and limitations
017: * under the License.
018: */
019: package org.apache.axis2.wsdl.util;
020:
021: import org.apache.axis2.wsdl.codegen.CodeGenConfiguration;
022: import org.apache.axis2.wsdl.i18n.CodegenMessages;
023:
024: import javax.xml.transform.Source;
025: import javax.xml.transform.TransformerException;
026: import javax.xml.transform.URIResolver;
027: import javax.xml.transform.stream.StreamSource;
028: import java.io.ByteArrayInputStream;
029: import java.io.InputStream;
030: import java.util.Iterator;
031: import java.util.Map;
032:
033: public class XSLTIncludeResolver implements URIResolver, Constants {
034:
035: private CodeGenConfiguration configuration;
036:
037: public static final String EMPTY_TEMPLATE = "<xsl:stylesheet version=\"1.0\" xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\"/>";
038:
039: public XSLTIncludeResolver() {
040: }
041:
042: /** @param config */
043: public XSLTIncludeResolver(CodeGenConfiguration config) {
044: this .configuration = config;
045: }
046:
047: /**
048: * Resolves a given href and base combination
049: *
050: * @param href
051: * @param base
052: * @throws TransformerException
053: */
054: public Source resolve(String href, String base)
055: throws TransformerException {
056: String templateName;
057: Map externalPropertyMap = configuration.getProperties();
058:
059: InputStream supporterTemplateStream;
060: if (XSLT_INCLUDE_DATABIND_SUPPORTER_HREF_KEY.equals(href)) {
061: //use the language name from the configuration to search the key
062: //our search only consists of looking for the data binding name
063: //in the key
064: Map dbSupporterMap = ConfigPropertyFileLoader
065: .getDbSupporterTemplatesMap();
066: String key;
067: for (Iterator keys = dbSupporterMap.keySet().iterator(); keys
068: .hasNext();) {
069: key = (String) keys.next();
070: if (key.indexOf(configuration.getDatabindingType()) != -1) {
071: return getSourceFromTemplateName((String) dbSupporterMap
072: .get(key));
073: }
074: }
075: }
076:
077: if (XSLT_INCLUDE_TEST_OBJECT_HREF_KEY.equals((href))) {
078: return getSourceFromTemplateName(ConfigPropertyFileLoader
079: .getTestObjectTemplateName());
080: }
081:
082: if (externalPropertyMap.get(href) != null) {
083: templateName = externalPropertyMap.get(href).toString();
084: if (templateName != null) {
085: supporterTemplateStream = getClass()
086: .getResourceAsStream(templateName);
087: return new StreamSource(supporterTemplateStream);
088: }
089: } else if ((href != null) && (!href.equals("externalTemplate"))) {
090: Source source = getSourceFromTemplateName(href);
091: if ((source != null)
092: && ((StreamSource) source).getInputStream() != null) {
093: return source;
094: }
095: return getEmptySource();
096: }
097: //if nothing could be found return an empty source
098: return getEmptySource();
099: }
100:
101: /**
102: * load the template from a given resource path
103: *
104: * @param templateName
105: * @return the loaded transform source
106: * @throws TransformerException
107: */
108: private Source getSourceFromTemplateName(String templateName)
109: throws TransformerException {
110: InputStream supporterTemplateStream;
111: if (templateName != null) {
112: supporterTemplateStream = getClass().getResourceAsStream(
113: templateName);
114: return new StreamSource(supporterTemplateStream);
115: } else {
116: throw new TransformerException(CodegenMessages.getMessage(
117: "resolver.templateNotFound", templateName));
118: }
119: }
120:
121: /**
122: * returns an empty source
123: *
124: * @return stream source
125: */
126: private Source getEmptySource() {
127: return new StreamSource(new ByteArrayInputStream(EMPTY_TEMPLATE
128: .getBytes()));
129: }
130: }
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