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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jrt;
import java.nio.ByteBuffer;
import java.util.Arrays;
/**
* String array. The internal string representation is UTF-8 encoded
* bytes. This means that creating an object of this class as well as
* extracting the value contained with the {@link #asStringArray
* asStringArray} method will incur a string conversion overhead.
**/
public class StringArray extends Value
{
private byte[][] value;
/**
* Create from a Java-type value
*
* @param value the value
**/
public StringArray(String[] value) {
this.value = new byte[value.length][];
for (int i = 0; i < value.length; i++) {
try {
this.value[i] = value[i].getBytes("UTF-8");
} catch(java.io.UnsupportedEncodingException e) {}
}
}
/**
* Create by decoding the value from the given buffer
*
* @param src buffer where the value is stored
**/
StringArray(ByteBuffer src) {
int size = src.getInt();
value = new byte[size][];
for (int i = 0; i < size; i++) {
value[i] = new byte[src.getInt()];
src.get(value[i]);
}
}
/**
* @return STRING_ARRAY
**/
public byte type() { return STRING_ARRAY; }
public int count() { return value.length; }
int bytes() {
int bytes = 4;
for (int i = 0; i < value.length; i++) {
bytes += 4 + value[i].length;
}
return bytes;
}
void encode(ByteBuffer dst) {
dst.putInt(value.length);
for (int i = 0; i < value.length; i++) {
dst.putInt(value[i].length);
dst.put(value[i]);
}
}
public String[] asStringArray() {
String[] ret = new String[value.length];
for (int i = 0; i < value.length; i++) {
try {
ret[i] = new String(value[i], "UTF-8");
} catch(java.io.UnsupportedEncodingException e) {}
}
return ret;
}
@Override
public String toString() {
return Arrays.toString(asStringArray());
}
}
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