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45
46 package org.openejb.alt.config;
47
48 import org.exolab.castor.xml.MarshalException;
49 import org.exolab.castor.xml.ValidationException;
50 import org.openejb.OpenEJBException;
51 import org.openejb.util.JarUtils;
52
53 import java.io.File  ;
54 import java.io.FileInputStream ;
55 import java.io.FileNotFoundException ;
56 import java.io.IOException ;
57 import java.io.InputStream ;
58 import java.io.InputStreamReader ;
59 import java.io.Reader ;
60 import java.net.MalformedURLException ;
61 import java.net.URL ;
62 import java.net.UnknownHostException ;
63 import java.util.jar.JarEntry ;
64 import java.util.jar.JarFile ;
65
66
69 public class Unmarshaller {
70
71 private final Class clazz;
72 private final File xmlFile;
73
74 private static DTDResolver resolver = new DTDResolver();
75
76 public Unmarshaller(Class type, String xmlFileName) {
77 this.clazz = type;
78 this.xmlFile = new File (xmlFileName);
79 }
80
81 public static Object unmarshal(Class clazz, String xmlFile, String jarLocation) throws OpenEJBException {
82 return new Unmarshaller(clazz, xmlFile).unmarshal(jarLocation);
83 }
84
85 public Object unmarshal(String location) throws OpenEJBException {
86 File file = new File (location);
87 if (file.isDirectory()){
88 return unmarshalFromDirectory(file);
89 } else {
90 return unmarshalFromJar(file);
91 }
92 }
93
94 public Object unmarshalFromJar(File jarFile) throws OpenEJBException {
95 String jarLocation = jarFile.getPath();
96 String file = xmlFile.getName();
97
98 JarFile jar = JarUtils.getJarFile(jarLocation);
99 JarEntry entry = jar.getJarEntry(xmlFile.getPath().replaceAll("\\\\", "/"));
100
101 if (entry == null) throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotFindFile", file, jarLocation));
102
103 Reader reader = null;
104 InputStream stream = null;
105
106 try {
107 stream = jar.getInputStream(entry);
108 reader = new InputStreamReader (stream);
109 return unmarshalObject(reader, file, jarLocation);
110 } catch (IOException e) {
111 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotRead", file, jarLocation, e.getLocalizedMessage()));
112 } finally {
113 try {
114 if (stream != null) stream.close();
115 if (reader != null) reader.close();
116 if (jar != null) jar.close();
117 } catch (Exception e) {
118 throw new OpenEJBException(EjbJarUtils.messages.format("file.0020", jarLocation, e.getLocalizedMessage()));
119 }
120 }
121 }
122
123 public Object unmarshalFromDirectory(File directory) throws OpenEJBException {
124 String file = xmlFile.getName();
125
126 Reader reader = null;
127 InputStream stream = null;
128
129 try {
130 File fullPath = new File (directory, xmlFile.getPath() );
131 stream = new FileInputStream (fullPath);
132 reader = new InputStreamReader (stream);
133 return unmarshalObject(reader, file, directory.getPath());
134 } catch (FileNotFoundException e) {
135 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotFindFile", file, directory.getPath()));
136 } finally {
137 try {
138 if (stream != null) stream.close();
139 if (reader != null) reader.close();
140 } catch (Exception e) {
141 throw new OpenEJBException(EjbJarUtils.messages.format("file.0020", directory.getPath(), e.getLocalizedMessage()));
142 }
143 }
144 }
145
146 public Object unmarshal(URL url) throws OpenEJBException {
147 String file = xmlFile.getName();
148
149 Reader reader = null;
150 InputStream stream = null;
151
152 try {
153 URL fullURL = new URL (url, xmlFile.getPath());
154 stream = fullURL.openConnection().getInputStream();
155 reader = new InputStreamReader (stream);
156 return unmarshalObject(reader, file, fullURL.getPath());
157 } catch (MalformedURLException e) {
158 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotFindFile", file, url.getPath()));
159 } catch (IOException e) {
160 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotRead", file, url.getPath(), e.getLocalizedMessage()));
161 } finally {
162 try {
163 if (stream != null) stream.close();
164 if (reader != null) reader.close();
165 } catch (Exception e) {
166 throw new OpenEJBException(EjbJarUtils.messages.format("file.0020", url.getPath(), e.getLocalizedMessage()));
167 }
168 }
169 }
170
171 private Object unmarshalObject(Reader reader, String file, String jarLocation) throws OpenEJBException {
172 try {
173 org.exolab.castor.xml.Unmarshaller unmarshaller = new org.exolab.castor.xml.Unmarshaller(clazz);
174 unmarshaller.setWhitespacePreserve(true);
175 unmarshaller.setEntityResolver(resolver);
176 return unmarshaller.unmarshal(reader);
177 } catch (MarshalException e) {
178 if (e.getException() instanceof UnknownHostException ) {
179 throw new OpenEJBException(EjbJarUtils.messages.format("xml.unkownHost", file, jarLocation, e.getLocalizedMessage()));
180 } else if (e.getException() instanceof org.xml.sax.SAXException ) {
181 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotParse", file, jarLocation, e.getLocalizedMessage()));
182 } else if (e.getException() instanceof IOException ) {
183 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotRead", file, jarLocation, e.getLocalizedMessage()));
184 } else if (e.getException() instanceof ValidationException){
185 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotValidate", file, jarLocation, e.getLocalizedMessage()));
186 } else {
187 e.printStackTrace();
188 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotUnmarshal", file, jarLocation, e.getLocalizedMessage()));
189 }
190 } catch (ValidationException e) {
191 throw new OpenEJBException(EjbJarUtils.messages.format("xml.cannotValidate", file, jarLocation, e.getLocalizedMessage()));
192 }
193 }
194 }
195 |
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