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/* 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.activiti.engine.impl.persistence.entity;

import org.apache.commons.lang3.StringUtils;

import java.io.Serializable;
import java.util.Arrays;

/**



 */
public class ByteArrayEntityImpl extends AbstractEntity implements ByteArrayEntity, Serializable {

  private static final long serialVersionUID = 1L;

  protected String name;
  protected byte[] bytes;
  protected String deploymentId;

  public ByteArrayEntityImpl() {
    
  }

  public byte[] getBytes() {
    return bytes;
  }

  public Object getPersistentState() {
    return new PersistentState(name, bytes);
  }

  // getters and setters ////////////////////////////////////////////////////////

  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public String getDeploymentId() {
    return deploymentId;
  }

  public void setDeploymentId(String deploymentId) {
    this.deploymentId = deploymentId;
  }

  public void setBytes(byte[] bytes) {
    this.bytes = bytes;
  }

  @Override
  public String toString() {
    return "ByteArrayEntity[id=" + id + ", name=" + name + ", size=" + (bytes != null ? bytes.length : 0) + "]";
  }

  // Wrapper for a byte array, needed to do byte array comparisons
  // See https://activiti.atlassian.net/browse/ACT-1524
  private static class PersistentState {

    private final String name;
    private final byte[] bytes;

    public PersistentState(String name, byte[] bytes) {
      this.name = name;
      this.bytes = bytes;
    }

    public boolean equals(Object obj) {
      if (obj instanceof PersistentState) {
        PersistentState other = (PersistentState) obj;
        return StringUtils.equals(this.name, other.name) && Arrays.equals(this.bytes, other.bytes);
      }
      return false;
    }

    @Override
    public int hashCode() {
      throw new UnsupportedOperationException();
    }

  }

}