com.alibaba.fastjson.util.ServiceLoader Java Examples

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Example #1
Source File: JSONSerializer.java From letv with Apache License 2.0
4 votes
public ObjectSerializer getObjectWriter(Class<?> clazz) {
    AutowiredObjectSerializer autowired;
    ObjectSerializer objectSerializer = (ObjectSerializer) this.config.get(clazz);
    if (objectSerializer == null) {
        try {
            for (AutowiredObjectSerializer o : ServiceLoader.load(AutowiredObjectSerializer.class, Thread.currentThread().getContextClassLoader())) {
                if (o instanceof AutowiredObjectSerializer) {
                    autowired = o;
                    for (Type forType : autowired.getAutowiredFor()) {
                        this.config.put(forType, autowired);
                    }
                }
            }
        } catch (ClassCastException e) {
        }
        objectSerializer = (ObjectSerializer) this.config.get(clazz);
    }
    if (objectSerializer == null) {
        ClassLoader classLoader = JSON.class.getClassLoader();
        if (classLoader != Thread.currentThread().getContextClassLoader()) {
            try {
                for (AutowiredObjectSerializer o2 : ServiceLoader.load(AutowiredObjectSerializer.class, classLoader)) {
                    if (o2 instanceof AutowiredObjectSerializer) {
                        autowired = o2;
                        for (Type forType2 : autowired.getAutowiredFor()) {
                            this.config.put(forType2, autowired);
                        }
                    }
                }
            } catch (ClassCastException e2) {
            }
            objectSerializer = (ObjectSerializer) this.config.get(clazz);
        }
    }
    if (objectSerializer == null) {
        if (Map.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, MapSerializer.instance);
        } else if (List.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, ListSerializer.instance);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, CollectionSerializer.instance);
        } else if (Date.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, DateSerializer.instance);
        } else if (JSONAware.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, JSONAwareSerializer.instance);
        } else if (JSONStreamAware.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, JSONStreamAwareSerializer.instance);
        } else if (clazz.isEnum() || (clazz.getSuperclass() != null && clazz.getSuperclass().isEnum())) {
            this.config.put(clazz, EnumSerializer.instance);
        } else if (clazz.isArray()) {
            Class<?> componentType = clazz.getComponentType();
            ObjectSerializer compObjectSerializer = getObjectWriter(componentType);
            this.config.put(clazz, new ArraySerializer(componentType, compObjectSerializer));
        } else if (Throwable.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, new ExceptionSerializer(clazz));
        } else if (TimeZone.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, TimeZoneCodec.instance);
        } else if (Appendable.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, AppendableSerializer.instance);
        } else if (Charset.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, CharsetCodec.instance);
        } else if (Enumeration.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, EnumerationSeriliazer.instance);
        } else if (Calendar.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, CalendarCodec.instance);
        } else if (Clob.class.isAssignableFrom(clazz)) {
            this.config.put(clazz, ClobSeriliazer.instance);
        } else {
            boolean isCglibProxy = false;
            boolean isJavassistProxy = false;
            Class[] arr$ = clazz.getInterfaces();
            int len$ = arr$.length;
            int i$ = 0;
            while (i$ < len$) {
                Class<?> item = arr$[i$];
                if (item.getName().equals("net.sf.cglib.proxy.Factory")) {
                    isCglibProxy = true;
                    break;
                } else if (item.getName().equals("javassist.util.proxy.ProxyObject")) {
                    isJavassistProxy = true;
                    break;
                } else {
                    i$++;
                }
            }
            if (isCglibProxy || isJavassistProxy) {
                ObjectSerializer superWriter = getObjectWriter(clazz.getSuperclass());
                this.config.put(clazz, superWriter);
                return superWriter;
            } else if (Proxy.isProxyClass(clazz)) {
                this.config.put(clazz, this.config.createJavaBeanSerializer(clazz));
            } else {
                this.config.put(clazz, this.config.createJavaBeanSerializer(clazz));
            }
        }
        objectSerializer = (ObjectSerializer) this.config.get(clazz);
    }
    return objectSerializer;
}