/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.test.iterative.nephele.danglingpagerank;
import eu.stratosphere.types.Value;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
public class LongArrayView implements Value {
private static final long serialVersionUID = 1L;
private long[] entries = new long[0];
private int numEntries = 0;
public LongArrayView() {
}
public long get(int index) {
if (index >= numEntries) {
throw new ArrayIndexOutOfBoundsException();
}
return getQuick(index);
}
public long getQuick(int index) {
return entries[index];
}
public void allocate(int numEntries) {
this.numEntries = numEntries;
ensureCapacity();
}
public void set(int index, long value) {
if (index >= numEntries) {
throw new ArrayIndexOutOfBoundsException();
}
setQuick(index, value);
}
public void setQuick(int index, long value) {
entries[index] = value;
}
public int size() {
return numEntries;
}
private void ensureCapacity() {
if (entries.length < numEntries) {
entries = new long[numEntries];
}
}
public void write(DataOutput out) throws IOException {
out.writeInt(numEntries);
for (int n = 0; n < numEntries; n++) {
out.writeLong(entries[n]);
}
}
public void read(DataInput in) throws IOException {
numEntries = in.readInt();
ensureCapacity();
for (int n = 0; n < numEntries; n++) {
entries[n] = in.readLong();
}
}
}