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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.dispatch;
import com.yahoo.compress.CompressionType;
import com.yahoo.compress.Compressor;
import com.yahoo.document.GlobalId;
import com.yahoo.document.idstring.IdIdString;
import com.yahoo.prelude.fastsearch.FastHit;
import com.yahoo.slime.ArrayTraverser;
import com.yahoo.slime.BinaryFormat;
import com.yahoo.slime.Cursor;
import com.yahoo.slime.Inspector;
import com.yahoo.slime.Slime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author bratseth
*/
public class MockClient implements Client {
private final Map<DocsumKey, Map<String, Object>> docsums = new HashMap<>();
private final Compressor compressor = new Compressor();
private boolean malfunctioning = false;
/** Set to true to cause this to produce an error instead of a regular response */
public void setMalfunctioning(boolean malfunctioning) { this.malfunctioning = malfunctioning; }
@Override
public NodeConnection createConnection(String hostname, int port) {
return new MockNodeConnection(hostname, port);
}
@Override
public void getDocsums(List<FastHit> hitsContext, NodeConnection node, CompressionType compression,
int uncompressedSize, byte[] compressedSlime, Dispatcher.GetDocsumsResponseReceiver responseReceiver,
double timeoutSeconds) {
if (malfunctioning) {
responseReceiver.receive(GetDocsumsResponseOrError.fromError("Malfunctioning"));
return;
}
Inspector request = BinaryFormat.decode(compressor.decompress(compressedSlime, compression, uncompressedSize)).get();
String docsumClass = request.field("class").asString();
List<Map<String, Object>> docsumsToReturn = new ArrayList<>();
request.field("gids").traverse((ArrayTraverser)(index, gid) -> {
GlobalId docId = new GlobalId(gid.asData());
docsumsToReturn.add(docsums.get(new DocsumKey(node.toString(), docId, docsumClass)));
});
Slime responseSlime = new Slime();
Cursor root = responseSlime.setObject();
Cursor docsums = root.setArray("docsums");
for (Map<String, Object> docsumFields : docsumsToReturn) {
Cursor docsumItem = docsums.addObject();
Cursor docsum = docsumItem.setObject("docsum");
for (Map.Entry<String, Object> field : docsumFields.entrySet()) {
if (field.getValue() instanceof Integer)
docsum.setLong(field.getKey(), (Integer)field.getValue());
else if (field.getValue() instanceof String)
docsum.setString(field.getKey(), (String)field.getValue());
else
throw new RuntimeException();
}
}
byte[] slimeBytes = BinaryFormat.encode(responseSlime);
Compressor.Compression compressionResult = compressor.compress(compression, slimeBytes);
GetDocsumsResponse response = new GetDocsumsResponse(compressionResult.type().getCode(), slimeBytes.length,
compressionResult.data(), hitsContext);
responseReceiver.receive(GetDocsumsResponseOrError.fromResponse(response));
}
public void setDocsumReponse(String nodeId, int docId, String docsumClass, Map<String, Object> docsumValues) {
docsums.put(new DocsumKey(nodeId, globalIdFrom(docId), docsumClass), docsumValues);
}
public GlobalId globalIdFrom(int hitId) {
return new GlobalId(new IdIdString("", "test", "", String.valueOf(hitId)));
}
private static class MockNodeConnection implements Client.NodeConnection {
private final String hostname;
public MockNodeConnection(String hostname, int port) {
this.hostname = hostname;
}
@Override
public void close() { }
@Override
public String toString() { return hostname; }
}
private static class DocsumKey {
private final String internalKey;
public DocsumKey(String nodeId, GlobalId docId, String docsumClass) {
internalKey = docsumClass + "." + nodeId + "." + docId;
}
@Override
public int hashCode() { return internalKey.hashCode(); }
@Override
public boolean equals(Object other) {
if ( ! (other instanceof DocsumKey)) return false;
return ((DocsumKey)other).internalKey.equals(this.internalKey);
}
@Override
public String toString() { return internalKey; }
}
}
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