/**
* Copyright (C) 2014 Couchbase, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALING
* IN THE SOFTWARE.
*/
package com.couchbase.client.java.transcoder;
import com.couchbase.client.core.lang.Tuple;
import com.couchbase.client.core.lang.Tuple2;
import com.couchbase.client.core.message.ResponseStatus;
import com.couchbase.client.deps.io.netty.buffer.ByteBuf;
import com.couchbase.client.deps.io.netty.buffer.Unpooled;
import com.couchbase.client.deps.io.netty.util.CharsetUtil;
import com.couchbase.client.java.document.JsonStringDocument;
import com.couchbase.client.java.error.TranscodingException;
/**
* A transcoder to encode and decode {@link JsonStringDocument}s.
*
* @author Michael Nitschinger
* @since 2.0
*/
public class JsonStringTranscoder extends AbstractTranscoder<JsonStringDocument, String> {
@Override
protected JsonStringDocument doDecode(String id, ByteBuf content, long cas, int expiry, int flags,
ResponseStatus status) throws Exception {
String decoded = content.toString(CharsetUtil.UTF_8);
if (TranscoderUtils.hasCommonFlags(flags) && flags == TranscoderUtils.JSON_COMMON_FLAGS) {
decoded = decoded.substring(1, decoded.length() - 1);
} else if (flags == 0) {
if (decoded.startsWith("\"") && decoded.endsWith("\"")) {
decoded = decoded.substring(1, decoded.length() - 1);
}
} else {
throw new TranscodingException("Flags (0x" + Integer.toHexString(flags) + ") indicate non " +
"JsonStringDocument id " + id + ", could not decode.");
}
return newDocument(id, expiry, decoded, cas);
}
@Override
protected Tuple2<ByteBuf, Integer> doEncode(JsonStringDocument document) throws Exception {
String content = "\"" + document.content() + "\"";
return Tuple.create(Unpooled.copiedBuffer(content, CharsetUtil.UTF_8), TranscoderUtils.JSON_COMPAT_FLAGS);
}
@Override
public JsonStringDocument newDocument(String id, int expiry, String content, long cas) {
return JsonStringDocument.create(id, expiry, content, cas);
}
@Override
public Class<JsonStringDocument> documentType() {
return JsonStringDocument.class;
}
}