/*
* Copyright 1999-2010 Luca Garulli (l.garulli--at--orientechnologies.com)
*
* 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.orientechnologies.orient.server.network.protocol.http.command.get;
import java.io.StringWriter;
import java.util.Collections;
import java.util.List;
import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx;
import com.orientechnologies.orient.core.serialization.serializer.OJSONWriter;
import com.orientechnologies.orient.core.storage.impl.local.ODataHoleInfo;
import com.orientechnologies.orient.core.storage.impl.local.ODataLocal;
import com.orientechnologies.orient.core.storage.impl.local.OStorageLocal;
import com.orientechnologies.orient.server.db.OSharedDocumentDatabase;
import com.orientechnologies.orient.server.network.protocol.http.OHttpRequest;
import com.orientechnologies.orient.server.network.protocol.http.OHttpUtils;
import com.orientechnologies.orient.server.network.protocol.http.command.OServerCommandAuthenticatedDbAbstract;
public class OServerCommandGetStorageAllocation extends OServerCommandAuthenticatedDbAbstract {
private static final String[] NAMES = { "GET|allocation/*" };
@Override
public boolean execute(final OHttpRequest iRequest) throws Exception {
String[] urlParts = checkSyntax(iRequest.url, 2, "Syntax error: allocation/<database>");
iRequest.data.commandInfo = "Storage allocation";
iRequest.data.commandDetail = urlParts[1];
ODatabaseDocumentTx db = null;
try {
db = getProfiledDatabaseInstance(iRequest);
final List<ODataHoleInfo> holes = ((OStorageLocal) db.getStorage()).getHolesList();
Collections.sort(holes);
final StringWriter buffer = new StringWriter();
final OJSONWriter json = new OJSONWriter(buffer);
final ODataLocal dataSegment = ((OStorageLocal) db.getStorage()).getDataSegment(0);
final long dbSize = dataSegment.getFilledUpTo();
json.beginObject();
json.writeAttribute(1, true, "size", dbSize);
long current = 0;
long holesSize = 0;
json.beginCollection(1, true, "segments");
for (ODataHoleInfo h : holes) {
if (h.dataOffset == -1)
continue;
if (current < h.dataOffset) {
// DATA SEGMENT
json.beginObject(2, true, null);
json.writeAttribute(3, false, "type", "d");
json.writeAttribute(3, false, "offset", current);
json.writeAttribute(3, false, "size", h.dataOffset - current);
json.endObject(2, false);
}
json.beginObject(2, true, null);
json.writeAttribute(3, false, "type", "h");
json.writeAttribute(3, false, "offset", h.dataOffset);
json.writeAttribute(3, false, "size", h.size);
json.endObject(2, false);
holesSize += h.size;
current = h.dataOffset + h.size;
}
if (dbSize > current) {
// DATA SEGMENT
json.beginObject(2, true, null);
json.writeAttribute(3, false, "type", "d");
json.writeAttribute(3, false, "offset", current);
json.writeAttribute(3, false, "size", dbSize - current);
json.endObject(2, false);
}
json.endCollection(1, true);
json.writeAttribute(1, true, "dataSize", dbSize - holesSize);
json.writeAttribute(1, true, "dataSizePercent", (dbSize - holesSize) * 100 / dbSize);
json.writeAttribute(1, true, "holesSize", holesSize);
json.writeAttribute(1, true, "holesSizePercent", 100 - (dbSize - holesSize) * 100 / dbSize);
json.endObject();
json.flush();
sendTextContent(iRequest, OHttpUtils.STATUS_OK_CODE, "OK", null, OHttpUtils.CONTENT_JSON, buffer.toString());
} finally {
if (db != null)
OSharedDocumentDatabase.release(db);
}
return false;
}
@Override
public String[] getNames() {
return NAMES;
}
}