msgpack-java/src/main/java/org/msgpack/type/ArrayValueImpl.java at master · egv/msgpack-java · GitHub

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// MessagePack for Java

// 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.msgpack.type;

import java.util.ListIterator;

import java.io.IOException;

import org.msgpack.packer.Packer;

class ArrayValueImpl extends AbstractArrayValue {

private static ArrayValueImpl emptyInstance = new ArrayValueImpl(new Value[0], true);

public static ArrayValue getEmptyInstance() {

return emptyInstance;

}

private Value[] array;

@Override

public Value[] getElementArray() {

return array;

}

ArrayValueImpl(Value[] array, boolean gift) {

if (gift) {

this.array = array;

} else {

this.array = new Value[array.length];

System.arraycopy(array, 0, this.array, 0, array.length);

}

@Override

public int size() {

return array.length;

}

@Override

public boolean isEmpty() {

return array.length == 0;

}

@Override

public Value get(int index) {

if (index < 0 || array.length <= index) {

throw new IndexOutOfBoundsException();

}

return array[index];

}

@Override

public int indexOf(Object o) {

if (o == null) {

return -1; // FIXME NullPointerException?

}

for (int i = 0; i < array.length; i++) {

if (array[i].equals(o)) {

return i;

}

return -1;

}

@Override

public int lastIndexOf(Object o) {

if (o == null) {

return -1; // FIXME NullPointerException?

}

for (int i = array.length - 1; i >= 0; i--) {

if (array[i].equals(o)) {

return i;

}

return -1;

}

@Override

public void writeTo(Packer pk) throws IOException {

pk.writeArrayBegin(array.length);

for (int i = 0; i < array.length; i++) {

array[i].writeTo(pk);

}

pk.writeArrayEnd();

}

@Override

public boolean equals(Object o) {

if (o == this) {

return true;

}

if (!(o instanceof Value)) {

return false;

}

Value v = (Value) o;

if (!v.isArrayValue()) {

return false;

}

if (v.getClass() == ArrayValueImpl.class) {

return equals((ArrayValueImpl) v);

}

ListIterator<Value> oi = v.asArrayValue().listIterator();

int i = 0;

while (i < array.length) {

if (!oi.hasNext() || !array[i].equals(oi.next())) {

return false;

}

i++;

}

return !oi.hasNext();

}

private boolean equals(ArrayValueImpl o) {

if (array.length != o.array.length) {

return false;

}

for (int i = 0; i < array.length; i++) {

if (!array[i].equals(o.array[i])) {

return false;

}

return true;

}

// TODO compareTo?

@Override

public int hashCode() {

int h = 1;

for (int i = 0; i < array.length; i++) {

Value obj = array[i];

h = 31 * h + obj.hashCode();

}

return h;

}

@Override

public String toString() {

return toString(new StringBuilder()).toString();

}

@Override

public StringBuilder toString(StringBuilder sb) {

if (array.length == 0) {

return sb.append("[]");

}

sb.append("[");

sb.append(array[0]);

for (int i = 1; i < array.length; i++) {

sb.append(",");

array[i].toString(sb);

}

sb.append("]");

return sb;

}

msgpack-java/src/main/java/org/msgpack/type/ArrayValueImpl.java at master · egv/msgpack-java · GitHub

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