static Object find()

in saaj-api-1.3/src/main/java/javax/xml/soap/FactoryFinder.java [113:194]
72 lines of code
16 McCabe index (conditional complexity)

    static Object find(String factoryPropertyName,
                       Class factoryClass,
                       String defaultFactoryClassName) throws SOAPException {
        
        try {
            // If we are deployed into an OSGi environment, leverage it
            if (factoryClass == null) {
                String factoryClassName = factoryPropertyName;
                if (factoryPropertyName.equals("javax.xml.soap.MetaFactory")) {
                    //this is an exception that the factoryPropertyName isn't
                    //the actual factory class name, there is no class
                    //javax.xml.soap.MetaFactory at all
                    factoryClassName = "javax.xml.soap.SAAJMetaFactory";
                }
                ClassLoader cl = FactoryFinder.class.getClassLoader();
                if (cl == null) {
                    cl = Thread.currentThread().getContextClassLoader();
                }
                factoryClass = cl.loadClass(factoryClassName);
            }
            Class spiClass = org.apache.servicemix.specs.locator.OsgiLocator.locate(factoryClass, factoryPropertyName);
            if (spiClass != null) {
                return spiClass.newInstance();
            }
        } catch (Throwable e) {
        }

        try {
            String factoryClassName = System.getProperty(factoryPropertyName);
            if (factoryClassName != null) {
                return newInstance(factoryClassName);
            }
        } catch (SecurityException securityexception) {
        }

        try {
            String propertiesFileName = System.getProperty("java.home")
                    + File.separator + "lib"
                    + File.separator + "jaxm.properties";
            File file = new File(propertiesFileName);
            if (file.exists()) {
                FileInputStream fileInput = new FileInputStream(file);
                Properties properties = new Properties();
                properties.load(fileInput);
                fileInput.close();
                String factoryClassName = properties.getProperty(
                        factoryPropertyName);
                return newInstance(factoryClassName);
            }
        } catch (Exception exception1) {
        }

        String factoryResource = "META-INF/services/" + factoryPropertyName;

        try {
            InputStream inputstream = getResource(factoryResource);
            if (inputstream != null) {
                BufferedReader bufferedreader = new BufferedReader(
                        new InputStreamReader(inputstream, "UTF-8"));
                String factoryClassName = bufferedreader.readLine();
                bufferedreader.close();
                if ((factoryClassName != null) && !"".equals(factoryClassName)) {
                    try {
                        return newInstance(factoryClassName);
                    } catch (Exception e) {
                        throw new SOAPException(
                                "Provider for " + factoryPropertyName + " cannot be found",
                                null);
                    }
                }
            }
        } catch (Exception exception2) {
        }

        if (defaultFactoryClassName == null) {
            throw new SOAPException(
                    "Provider for " + factoryPropertyName + " cannot be found",
                    null);
        } else {
            return newInstance(defaultFactoryClassName);
        }
    }