/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.ignite.internal.processors.igfs.meta;
import org.apache.ignite.IgniteException;
import org.apache.ignite.binary.BinaryObjectException;
import org.apache.ignite.binary.BinaryRawReader;
import org.apache.ignite.binary.BinaryRawWriter;
import org.apache.ignite.binary.BinaryReader;
import org.apache.ignite.binary.BinaryWriter;
import org.apache.ignite.binary.Binarylizable;
import org.apache.ignite.internal.binary.BinaryUtils;
import org.apache.ignite.internal.processors.igfs.IgfsEntryInfo;
import org.apache.ignite.internal.processors.igfs.IgfsListingEntry;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.lang.IgniteUuid;
import javax.cache.processor.EntryProcessor;
import javax.cache.processor.EntryProcessorException;
import javax.cache.processor.MutableEntry;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.HashMap;
import java.util.Map;
/**
* Listing replace processor.
*/
public final class IgfsMetaDirectoryListingReplaceProcessor implements EntryProcessor<IgniteUuid, IgfsEntryInfo, Void>,
Externalizable, Binarylizable {
/** */
private static final long serialVersionUID = 0L;
/** Name. */
private String name;
/** New ID. */
private IgniteUuid id;
/**
* Constructor.
*/
public IgfsMetaDirectoryListingReplaceProcessor() {
// No-op.
}
/**
* Constructor.
*
* @param name Name.
* @param id ID.
*/
public IgfsMetaDirectoryListingReplaceProcessor(String name, IgniteUuid id) {
this.name = name;
this.id = id;
}
/** {@inheritDoc} */
@Override public Void process(MutableEntry<IgniteUuid, IgfsEntryInfo> e, Object... args)
throws EntryProcessorException {
IgfsEntryInfo fileInfo = e.getValue();
assert fileInfo.isDirectory();
Map<String, IgfsListingEntry> listing = new HashMap<>(fileInfo.listing());
// Modify listing in-place.
IgfsListingEntry oldEntry = listing.get(name);
if (oldEntry == null)
throw new IgniteException("Directory listing doesn't contain expected entry: " + name);
listing.put(name, new IgfsListingEntry(id, oldEntry.isDirectory()));
e.setValue(fileInfo.listing(listing));
return null;
}
/** {@inheritDoc} */
@Override public void writeExternal(ObjectOutput out) throws IOException {
U.writeString(out, name);
U.writeGridUuid(out, id);
}
/** {@inheritDoc} */
@Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
name = U.readString(in);
id = U.readGridUuid(in);
}
/** {@inheritDoc} */
@Override public void writeBinary(BinaryWriter writer) throws BinaryObjectException {
BinaryRawWriter out = writer.rawWriter();
out.writeString(name);
BinaryUtils.writeIgniteUuid(out, id);
}
/** {@inheritDoc} */
@Override public void readBinary(BinaryReader reader) throws BinaryObjectException {
BinaryRawReader in = reader.rawReader();
name = in.readString();
id = BinaryUtils.readIgniteUuid(in);
}
/** {@inheritDoc} */
@Override public String toString() {
return S.toString(IgfsMetaDirectoryListingReplaceProcessor.class, this);
}
}