org.apache.olingo.ext.proxy.commons.EntityCollectionInvocationHandler.java Source code

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Here is the source code for org.apache.olingo.ext.proxy.commons.EntityCollectionInvocationHandler.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.olingo.ext.proxy.commons;

import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.lang3.ArrayUtils;
import org.apache.olingo.client.api.uri.URIBuilder;
import org.apache.olingo.ext.proxy.AbstractService;
import org.apache.olingo.ext.proxy.api.EntityCollection;
import org.apache.olingo.ext.proxy.api.EntityType;

public class EntityCollectionInvocationHandler<T extends EntityType<?>>
        extends AbstractEntityCollectionInvocationHandler<T, EntityCollection<T, ?, ?>> {

    public EntityCollectionInvocationHandler(final AbstractService<?> service,
            final Class<? extends EntityCollection<T, ?, ?>> collItemRef) {
        this(service, new ArrayList<T>(), collItemRef, null, null);
    }

    public <EC extends EntityCollection<T, ?, ?>> EntityCollectionInvocationHandler(
            final AbstractService<?> service, final Collection<T> items,
            final Class<? extends EntityCollection<T, ?, ?>> collItemRef, final URI targetEntitySetURI,
            final URIBuilder uri) {

        super(collItemRef, service, targetEntitySetURI, uri);
        this.items = items;
    }

    @Override
    public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
        if ("filter".equals(method.getName()) || "orderBy".equals(method.getName())
                || "top".equals(method.getName()) || "skip".equals(method.getName())
                || "expand".equals(method.getName()) || "select".equals(method.getName())
                || "nextPage".equals(method.getName()) || "refs".equals(method.getName())
                || "execute".equals(method.getName())) {
            invokeSelfMethod(method, args);
            return proxy;
        } else if (isSelfMethod(method)) {
            return invokeSelfMethod(method, args);
        } else if ("operations".equals(method.getName()) && ArrayUtils.isEmpty(args)) {
            final Class<?> returnType = method.getReturnType();

            return Proxy.newProxyInstance(Thread.currentThread().getContextClassLoader(),
                    new Class<?>[] { returnType }, OperationInvocationHandler.getInstance(this));
        } else {
            throw new NoSuchMethodException(method.getName());
        }
    }
}