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/*
* Copyright 2006-2007 the original author or authors.
*
* 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 net.sf.ezmorph.array;
import java.lang.reflect.Array;
import net.sf.ezmorph.MorphException;
import net.sf.ezmorph.primitive.LongMorpher;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
/**
* Morphs an array to a long[].
*
* @author Andres Almiray <aalmiray@users.sourceforge.net>
*/
public final class LongArrayMorpher extends AbstractArrayMorpher
{
private static final Class LONG_ARRAY_CLASS = long[].class;
private long defaultValue;
public LongArrayMorpher()
{
super( false );
}
/**
* @param defaultValue return value if the value to be morphed is null
*/
public LongArrayMorpher( long defaultValue )
{
super( true );
this.defaultValue = defaultValue;
}
public boolean equals( Object obj )
{
if( this == obj ){
return true;
}
if( obj == null ){
return false;
}
if( !(obj instanceof LongArrayMorpher) ){
return false;
}
LongArrayMorpher other = (LongArrayMorpher) obj;
EqualsBuilder builder = new EqualsBuilder();
if( isUseDefault() && other.isUseDefault() ){
builder.append( getDefaultValue(), other.getDefaultValue() );
return builder.isEquals();
}else if( !isUseDefault() && !other.isUseDefault() ){
return builder.isEquals();
}else{
return false;
}
}
/**
* Returns the default value for this Morpher.
*/
public long getDefaultValue()
{
return defaultValue;
}
public int hashCode()
{
HashCodeBuilder builder = new HashCodeBuilder();
if( isUseDefault() ){
builder.append( getDefaultValue() );
}
return builder.toHashCode();
}
public Object morph( Object array )
{
if( array == null ){
return null;
}
if( LONG_ARRAY_CLASS.isAssignableFrom( array.getClass() ) ){
// no conversion needed
return (long[]) array;
}
if( array.getClass()
.isArray() ){
int length = Array.getLength( array );
int dims = getDimensions( array.getClass() );
int[] dimensions = createDimensions( dims, length );
Object result = Array.newInstance( long.class, dimensions );
LongMorpher morpher = isUseDefault() ? new LongMorpher( defaultValue ) : new LongMorpher();
if( dims == 1 ){
for( int index = 0; index < length; index++ ){
Array.set( result, index, new Long( morpher.morph( Array.get( array, index ) ) ) );
}
}else{
for( int index = 0; index < length; index++ ){
Array.set( result, index, morph( Array.get( array, index ) ) );
}
}
return result;
}else{
throw new MorphException( "argument is not an array: " + array.getClass() );
}
}
public Class morphsTo()
{
return LONG_ARRAY_CLASS;
}
}
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