/**
 * Copyright 2010 JBoss Inc
 *
 * 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.
 */

package org.jbpm.task;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Arrays;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Lob;
import javax.persistence.Table;

@Entity
@Table(name = "JBPM_CONTENT")
public class Content implements Externalizable {
	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	private long id;

	@Lob
	private byte[] content;

	public Content() {

	}

	public Content(final byte[] content) {
		this.content = content;
	}

	public void writeExternal(final ObjectOutput out) throws IOException {
		out.writeLong(id);
		out.writeInt(content.length);
		out.write(content);
	}

	public void readExternal(final ObjectInput in) throws IOException,
			ClassNotFoundException {
		id = in.readLong();
		content = new byte[in.readInt()];
		in.readFully(content);
	}

	public long getId() {
		return id;
	}

	public void setId(final long id) {
		this.id = id;
	}

	public byte[] getContent() {
		return content;
	}

	public void setContent(final byte[] content) {
		this.content = content;
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + Arrays.hashCode(content);
		return result;
	}

	@Override
	public boolean equals(final Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (!(obj instanceof Content)) {
			return false;
		}
		final Content other = (Content) obj;
		if (!Arrays.equals(content, other.content)) {
			return false;
		}
		return true;
	}

}