in modules/implementation-spring/src/main/java/org/apache/tuscany/sca/implementation/spring/introspect/SpringXMLComponentTypeLoader.java [656:778]
protected List<URL> getApplicationContextResource(URL url)
throws ContributionReadException {
File manifestFile = null;
File appXmlFile;
File locationFile = null;
List<URL> appCtxResources = new ArrayList<URL>();
if (url != null) {
String path = url.getPath();
locationFile = new File(path);
} else {
throw new ContributionReadException("SpringXMLComponentTypeLoader getApplicationContextResource: "
+ "unable to find resource file " + url);
}
if (locationFile.isDirectory()) {
try {
manifestFile = new File(locationFile, "META-INF"+ File.separator +"MANIFEST.MF");
if (manifestFile.exists()) {
Manifest mf = new Manifest(new FileInputStream(manifestFile));
Attributes mainAttrs = mf.getMainAttributes();
String appCtxPath = mainAttrs.getValue("Spring-Context");
if (appCtxPath != null) {
String[] cxtPaths = appCtxPath.split(";");
for (String path : cxtPaths) {
appXmlFile = new File(locationFile, path);
if (appXmlFile.exists()) {
appCtxResources.add(appXmlFile.toURI().toURL());
}
}
return appCtxResources;
}
}
// no manifest-specified Spring context, use default
appXmlFile = new File(locationFile, "META-INF" + File.separator + "spring"
+ File.separator + SpringImplementationConstants.APPLICATION_CONTEXT);
if (appXmlFile.exists()) {
appCtxResources.add(appXmlFile.toURI().toURL());
return appCtxResources;
}
} catch (IOException e) {
throw new ContributionReadException("Error reading manifest " + manifestFile);
}
} else {
if (locationFile.isFile() && locationFile.getName().endsWith(".jar")) {
try {
JarFile jf = new JarFile(locationFile);
JarEntry je;
Manifest mf = jf.getManifest();
if (mf != null) {
Attributes mainAttrs = mf.getMainAttributes();
String appCtxPath = mainAttrs.getValue("Spring-Context");
if (appCtxPath != null) {
String[] cxtPaths = appCtxPath.split(";");
for (String path : cxtPaths) {
je = jf.getJarEntry(path);
if (je != null) {
appCtxResources.add(new URL("jar:" + locationFile.toURI().toURL() + "!/" + appCtxPath));
}
}
return appCtxResources;
}
}
// Look for the default applicaiton-context.xml file, when MANIFEST.MF is absent.
je = jf.getJarEntry("META-INF" + "/" + "spring" + "/" + SpringImplementationConstants.APPLICATION_CONTEXT);
if (je != null) {
appCtxResources.add(new URL("jar:" + locationFile.toURI().toURL() + "!/" +
"META-INF" + "/" + "spring" + "/" + SpringImplementationConstants.APPLICATION_CONTEXT));
return appCtxResources;
}
} catch (IOException e) {
// TODO: create a more appropriate exception type
throw new ContributionReadException("SpringXMLLoader getApplicationContextResource: "
+ " IO exception reading context file.", e);
}
}
else {
if (locationFile.getName().endsWith(".xml")) {
appCtxResources.add(url);
return appCtxResources;
}
else {
// Deal with the directory inside a jar file, in case the contribution itself is a JAR file.
try {
if (locationFile.getPath().indexOf(".jar") > 0) {
String jarPath = url.getPath().substring(5, url.getPath().indexOf("!"));
JarFile jf = new JarFile(jarPath);
JarEntry je = jf.getJarEntry(url.getPath().substring(url.getPath().indexOf("!/")+2)
+ "/" + "META-INF" + "/" + "MANIFEST.MF");
if (je != null) {
Manifest mf = new Manifest(jf.getInputStream(je));
Attributes mainAttrs = mf.getMainAttributes();
String appCtxPath = mainAttrs.getValue("Spring-Context");
if (appCtxPath != null) {
String[] cxtPaths = appCtxPath.split(";");
for (String path : cxtPaths) {
je = jf.getJarEntry(url.getPath().substring(url.getPath().indexOf("!/")+2) + "/" + path);
if (je != null) {
appCtxResources.add(new URL("jar:" + url.getPath() + "/" + path));
return appCtxResources;
}
}
}
}
// Look for the default applicaiton-context.xml file, when MANIFEST.MF is absent.
je = jf.getJarEntry(url.getPath().substring(url.getPath().indexOf("!/")+2) + "/" +
"META-INF" + "/" + "spring" + "/" + SpringImplementationConstants.APPLICATION_CONTEXT);
if (je != null) {
appCtxResources.add(new URL("jar:" + url.getPath() + "/" +
"META-INF" + "/" + "spring" + "/" + SpringImplementationConstants.APPLICATION_CONTEXT));
return appCtxResources;
}
}
} catch (IOException e) {
throw new ContributionReadException("Error reading manifest " + manifestFile);
}
}
}
}
throw new ContributionReadException("SpringXMLComponentTypeLoader getApplicationContextResource: "
+ "unable to read resource file " + url);
} // end method getApplicationContextResource