/
RangeBuilder.java
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/
RangeBuilder.java
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/*******************************************************************************
* Copyright 2011 Netflix
*
* 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 com.netflix.astyanax.util;
import java.nio.ByteBuffer;
import java.util.Date;
import java.util.UUID;
import com.google.common.base.Preconditions;
import com.netflix.astyanax.Serializer;
import com.netflix.astyanax.model.ByteBufferRange;
import com.netflix.astyanax.serializers.BooleanSerializer;
import com.netflix.astyanax.serializers.ByteBufferSerializer;
import com.netflix.astyanax.serializers.BytesArraySerializer;
import com.netflix.astyanax.serializers.DateSerializer;
import com.netflix.astyanax.serializers.DoubleSerializer;
import com.netflix.astyanax.serializers.IntegerSerializer;
import com.netflix.astyanax.serializers.LongSerializer;
import com.netflix.astyanax.serializers.StringSerializer;
import com.netflix.astyanax.serializers.UUIDSerializer;
/**
* Utility builder to construct a ByteBufferRange to be used in a slice query.
*
* @author elandau
*
*/
public class RangeBuilder {
private static ByteBuffer EMPTY_BUFFER = ByteBuffer.allocate(0);
private static final int DEFAULT_MAX_SIZE = Integer.MAX_VALUE;
private ByteBuffer start = EMPTY_BUFFER;
private ByteBuffer end = EMPTY_BUFFER;
private int limit = DEFAULT_MAX_SIZE;
private boolean reversed = false;
/**
* @deprecated use setLimit instead
*/
@Deprecated
public RangeBuilder setMaxSize(int count) {
return setLimit(count);
}
public RangeBuilder setLimit(int count) {
Preconditions.checkArgument(count >= 0, "Invalid count in RangeBuilder : " + count);
this.limit = count;
return this;
}
/**
* @deprecated Use setReversed(boolean reversed)
* @return
*/
@Deprecated
public RangeBuilder setReversed() {
reversed = true;
return this;
}
public RangeBuilder setReversed(boolean reversed) {
this.reversed = reversed;
return this;
}
public RangeBuilder setStart(String value) {
start = StringSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(byte[] value) {
start = BytesArraySerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(int value) {
start = IntegerSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(long value) {
start = LongSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(boolean value) {
start = BooleanSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(ByteBuffer value) {
start = ByteBufferSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(Date value) {
start = DateSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(double value) {
start = DoubleSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setStart(UUID value) {
start = UUIDSerializer.get().toByteBuffer(value);
return this;
}
public <T> RangeBuilder setStart(T value, Serializer<T> serializer) {
start = serializer.toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(String value) {
end = StringSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(byte[] value) {
end = BytesArraySerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(int value) {
end = IntegerSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(long value) {
end = LongSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(boolean value) {
end = BooleanSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(ByteBuffer value) {
end = ByteBufferSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(Date value) {
end = DateSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(double value) {
end = DoubleSerializer.get().toByteBuffer(value);
return this;
}
public RangeBuilder setEnd(UUID value) {
end = UUIDSerializer.get().toByteBuffer(value);
return this;
}
public <T> RangeBuilder setEnd(T value, Serializer<T> serializer) {
end = serializer.toByteBuffer(value);
return this;
}
public ByteBufferRange build() {
return new ByteBufferRangeImpl(clone(start), clone(end), limit, reversed);
}
public static ByteBuffer clone(ByteBuffer original) {
ByteBuffer clone = ByteBuffer.allocate(original.capacity());
original.rewind();// copy from the beginning
clone.put(original);
original.rewind();
clone.flip();
return clone;
}
}