in tools/org.apache.felix.scr.generator/src/main/java/org/apache/felix/scrplugin/xml/MetaTypeIO.java [84:237]
public static List<String> generateDescriptors(final DescriptionContainer module,
final Project project,
final Options options,
final Log logger)
throws SCRDescriptorException {
// create a list with relevant components
final List<ComponentContainer> components = new ArrayList<ComponentContainer>();
for(final ComponentContainer component : module.getComponents()) {
if ( component.getMetatypeContainer() != null ) {
components.add(component);
}
}
// write meta type info
final File mtDir = options.getMetaTypeDirectory();
final File parentDir = mtDir.getParentFile();
if (components.size() > 0) {
// check for metatype.properties
// we used to have this in OSGI-INF/metatype, but that is actually not allowed by the spec
// we should break the build
final File oldMtProps = new File(project.getClassesDirectory(), OLD_LOCATION + File.separator + PROPS_FILE);
if ( oldMtProps.exists() ) {
throw new SCRDescriptorException("metatype properties file must be stored outside of " + OLD_LOCATION + ", move it to " + NEW_LOCATION, oldMtProps.getAbsolutePath());
}
final File mtProps = new File(project.getClassesDirectory(), NEW_LOCATION + File.separator + PROPS_FILE);
final boolean oldStyle = mtProps.exists();
final List<String> fileNames = new ArrayList<String>();
final List<ComponentContainerContainer> containers = ComponentContainerUtil.split(components);
for(final ComponentContainerContainer ccc : containers) {
mtDir.mkdirs();
final File useFile = new File(mtDir, ccc.className + ".xml");
String metatypeLocation = NEW_LOCATION.replace(File.separatorChar, '/') + "/metatype";
// check if all labels and descriptions are inlined
boolean allInlined = true;
for(final ComponentContainer cc : ccc.components) {
final MetatypeContainer mc = cc.getMetatypeContainer();
if ( mc.getName() == null ) {
if ( oldStyle ) {
mc.setName( "%" + cc.getComponentDescription().getName() + ".name");
} else {
mc.setName("Component " + cc.getComponentDescription().getName());
}
}
if ( mc.getName() != null && mc.getName().startsWith("%") ) {
allInlined = false;
}
if ( mc.getDescription() == null ) {
if ( oldStyle ) {
mc.setDescription("%" + cc.getComponentDescription().getName() + ".description");
} else {
mc.setDescription("Description for " + cc.getComponentDescription().getName());
}
}
if ( mc.getDescription() != null && mc.getDescription().startsWith("%") ) {
allInlined = false;
}
for(final MetatypeAttributeDefinition mad : mc.getProperties()) {
if ( mad.getName() == null ) {
if ( oldStyle ) {
mad.setName("%" + mad.getId() + ".name");
} else {
mad.setName("Property " + mad.getId());
}
}
if ( mad.getName() != null && mad.getName().startsWith("%") ) {
allInlined = false;
}
if ( mad.getDescription() == null ) {
if ( oldStyle ) {
mad.setDescription("%" + mad.getId() + ".description");
} else {
mad.setDescription("Description for " + mad.getId());
}
}
if ( mad.getDescription() != null && mad.getDescription().startsWith("%") ) {
allInlined = false;
}
}
}
if ( allInlined ) {
final Properties metatypeProps = new Properties();
// externalize all labels and descriptions
for(final ComponentContainer cc : ccc.components) {
final MetatypeContainer mc = cc.getMetatypeContainer();
final String baseKey = cc.getComponentDescription().getName().replace("$", ".");
if ( mc.getName() != null ) {
final String key = baseKey + ".name";
metatypeProps.put(key, mc.getName());
mc.setName("%" + key);
}
if ( mc.getDescription() != null ) {
final String key = baseKey + ".description";
metatypeProps.put(key, mc.getDescription());
mc.setDescription("%" + key);
}
for(final MetatypeAttributeDefinition mad : mc.getProperties()) {
if ( mad.getName() != null ) {
final String key = baseKey + "." + mad.getId() + ".name";
metatypeProps.put(key, mad.getName());
mad.setName("%" + key);
}
if ( mad.getDescription() != null ) {
final String key = baseKey + "." + mad.getId() + ".description";
metatypeProps.put(key, mad.getDescription());
mad.setDescription("%" + key);
}
}
}
if ( metatypeProps.size() > 0 ) {
final int lastDot = useFile.getName().lastIndexOf(".");
final String baseName = useFile.getName().substring(0, lastDot);
final File propsFile = new File(options.getOutputDirectory(), NEW_LOCATION + File.separator + baseName + ".properties");
propsFile.getParentFile().mkdirs();
try {
final FileOutputStream fos = new FileOutputStream(propsFile);
try {
metatypeProps.store(fos, null);
}
finally {
fos.close();
}
}
catch (IOException e) {
throw new SCRDescriptorException("Unable to create metatype.properties", propsFile.getAbsolutePath());
}
fileNames.add(NEW_LOCATION.replace(File.separatorChar, '/') + '/' + propsFile.getName());
metatypeLocation = NEW_LOCATION.replace(File.separatorChar, '/') + "/" + baseName;
}
}
logger.info("Generating " + ccc.components.size() + " MetaType Descriptors in " + useFile);
MetaTypeIO.write(module, ccc.components, useFile, metatypeLocation);
fileNames.add(parentDir.getName() + '/' + mtDir.getName() + '/' + useFile.getName());
}
return fileNames;
}
if (mtDir.exists() && !options.isIncremental()) {
for(final File f : mtDir.listFiles()) {
if ( f.isFile() ) {
logger.debug("Removing obsolete metatype file " + f);
f.delete();
}
}
}
return null;
}