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ArangoDB Java Driver
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/*
 * DISCLAIMER
 *
 * Copyright 2016 ArangoDB GmbH, Cologne, Germany
 *
 * Licensed 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.
 *
 * Copyright holder is ArangoDB GmbH, Cologne, Germany
 */

package com.arangodb.internal;

import java.util.Collection;

import com.arangodb.ArangoDBException;
import com.arangodb.ArangoEdgeCollection;
import com.arangodb.ArangoGraph;
import com.arangodb.ArangoVertexCollection;
import com.arangodb.entity.EdgeDefinition;
import com.arangodb.entity.GraphEntity;
import com.arangodb.internal.velocystream.internal.ConnectionSync;
import com.arangodb.model.GraphCreateOptions;
import com.arangodb.velocystream.Response;

/**
 * @author Mark Vollmary
 *
 */
public class ArangoGraphImpl
		extends InternalArangoGraph
		implements ArangoGraph {

	protected ArangoGraphImpl(final ArangoDatabaseImpl db, final String name) {
		super(db, name);
	}

	@Override
	public boolean exists() throws ArangoDBException {
		try {
			getInfo();
			return true;
		} catch (final ArangoDBException e) {
			if (ArangoErrors.ERROR_GRAPH_NOT_FOUND.equals(e.getErrorNum())) {
				return false;
			}
			throw e;
		}
	}

	@Override
	public GraphEntity create(final Collection edgeDefinitions) throws ArangoDBException {
		return db().createGraph(name(), edgeDefinitions);
	}

	@Override
	public GraphEntity create(final Collection edgeDefinitions, final GraphCreateOptions options)
			throws ArangoDBException {
		return db().createGraph(name(), edgeDefinitions, options);
	}

	@Override
	public void drop() throws ArangoDBException {
		executor.execute(dropRequest(), Void.class);
	}

	@Override
	public GraphEntity getInfo() throws ArangoDBException {
		return executor.execute(getInfoRequest(), getInfoResponseDeserializer());
	}

	@Override
	public Collection getVertexCollections() throws ArangoDBException {
		return executor.execute(getVertexCollectionsRequest(), getVertexCollectionsResponseDeserializer());
	}

	@Override
	public GraphEntity addVertexCollection(final String name) throws ArangoDBException {
		return executor.execute(addVertexCollectionRequest(name), addVertexCollectionResponseDeserializer());
	}

	@Override
	public ArangoVertexCollection vertexCollection(final String name) {
		return new ArangoVertexCollectionImpl(this, name);
	}

	@Override
	public ArangoEdgeCollection edgeCollection(final String name) {
		return new ArangoEdgeCollectionImpl(this, name);
	}

	@Override
	public Collection getEdgeDefinitions() throws ArangoDBException {
		return executor.execute(getEdgeDefinitionsRequest(), getEdgeDefinitionsDeserializer());
	}

	@Override
	public GraphEntity addEdgeDefinition(final EdgeDefinition definition) throws ArangoDBException {
		return executor.execute(addEdgeDefinitionRequest(definition), addEdgeDefinitionResponseDeserializer());
	}

	@Override
	public GraphEntity replaceEdgeDefinition(final EdgeDefinition definition) throws ArangoDBException {
		return executor.execute(replaceEdgeDefinitionRequest(definition), replaceEdgeDefinitionResponseDeserializer());
	}

	@Override
	public GraphEntity removeEdgeDefinition(final String definitionName) throws ArangoDBException {
		return executor.execute(removeEdgeDefinitionRequest(definitionName),
			removeEdgeDefinitionResponseDeserializer());
	}

}