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17 package org.apache.juddi.jaxb;
18
19 import java.io.ByteArrayInputStream;
20 import java.io.ByteArrayOutputStream;
21 import java.io.IOException;
22 import java.io.InputStream;
23 import java.net.URL;
24 import java.util.HashMap;
25 import java.util.Map;
26
27 import javax.xml.bind.JAXBContext;
28 import javax.xml.bind.JAXBElement;
29 import javax.xml.bind.JAXBException;
30 import javax.xml.bind.Marshaller;
31 import javax.xml.bind.Unmarshaller;
32
33 import org.apache.commons.logging.Log;
34 import org.apache.commons.logging.LogFactory;
35 import org.w3c.dom.Element;
36
37
38
39
40 public class JAXBMarshaller {
41 private static Log logger = LogFactory.getLog(JAXBMarshaller.class);
42
43 public static final String PACKAGE_UDDIAPI = "org.uddi.api_v3";
44 public static final String PACKAGE_SUBSCRIPTION = "org.uddi.sub_v3";
45 public static final String PACKAGE_SUBSCR_RES = "org.uddi.subr_v3";
46 public static final String PACKAGE_JUDDIAPI = "org.apache.juddi.api_v3";
47 public static final String PACKAGE_JUDDI = "org.apache.juddi";
48 private static final Map<String, JAXBContext> JAXBContexts = new HashMap<String, JAXBContext>();
49
50 private static JAXBContext getContext(String packageName) {
51 if (!JAXBContexts.containsKey(packageName)) {
52 try {
53 JAXBContexts.put(packageName, JAXBContext.newInstance(packageName));
54 } catch (JAXBException e) {
55 logger.error("Initialization of JAXBMarshaller failed:" + e, e);
56 throw new ExceptionInInitializerError(e);
57 }
58 }
59
60 return JAXBContexts.get(packageName);
61 }
62
63 @SuppressWarnings("rawtypes")
64 public static Object unmarshallFromInputStream(InputStream inputStream, String thePackage) throws JAXBException {
65 Object obj = null;
66 if (inputStream != null) {
67 JAXBContext jc = getContext(thePackage);
68 Unmarshaller unmarshaller = jc.createUnmarshaller();
69 obj = ((JAXBElement)unmarshaller.unmarshal(inputStream)).getValue();
70 }
71 else
72 logger.error("A null input stream was provided");
73
74 return obj;
75
76 }
77
78 public static Object unmarshallFromFileResource(String fileName, String thePackage) throws JAXBException, IOException {
79 Object obj = null;
80 URL url = Thread.currentThread().getContextClassLoader().getResource(fileName);
81 if (url==null) {
82 logger.error("Could not find resource: " + fileName);
83 } else {
84 InputStream resourceStream =url.openStream();
85
86 obj = unmarshallFromInputStream(resourceStream, thePackage);
87 }
88 return obj;
89 }
90
91 public static Object unmarshallFromString(String rawObject, String thePackage) throws JAXBException {
92 Object obj = null;
93 if (rawObject != null && rawObject.length() > 0) {
94 ByteArrayInputStream bais = new ByteArrayInputStream(rawObject.getBytes());
95 obj = unmarshallFromInputStream(bais, thePackage);
96 }
97 else
98 logger.error("The raw object provided is null or empty");
99 return obj;
100 }
101
102 public static String marshallToString(Object object, String thePackage) {
103 String rawObject = null;
104
105 try {
106 JAXBContext jc = getContext(thePackage);
107 Marshaller marshaller = jc.createMarshaller();
108 marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.FALSE);
109 marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
110 marshaller.setProperty(Marshaller.JAXB_ENCODING, "UTF-8");
111 ByteArrayOutputStream baos = new ByteArrayOutputStream();
112 marshaller.marshal(object, baos);
113 rawObject = baos.toString();
114 } catch (JAXBException e) {
115 logger.error(e.getMessage(),e);
116 }
117
118 return rawObject;
119 }
120
121 public static Element marshallToElement(Object object, String thePackage, Element element) throws JAXBException {
122
123 JAXBContext jc = getContext(thePackage);
124 Marshaller marshaller = jc.createMarshaller();
125 marshaller.marshal(object, element);
126 return element;
127 }
128
129 public static Object unmarshallFromElement(Element element, String thePackage) throws JAXBException {
130 JAXBContext jc = getContext(thePackage);
131 Unmarshaller unmarshaller = jc.createUnmarshaller();
132 @SuppressWarnings("rawtypes")
133 Object obj = ((JAXBElement) unmarshaller.unmarshal(element)).getValue();
134 return obj;
135 }
136
137 }