| /* |
| * 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.hugegraph.backend.serializer; |
| |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.hugegraph.backend.id.Id; |
| import org.apache.hugegraph.backend.store.BackendEntry; |
| import org.apache.hugegraph.backend.store.BackendEntryIterator; |
| import org.apache.hugegraph.type.HugeType; |
| import org.apache.hugegraph.util.Bytes; |
| import org.apache.hugegraph.util.E; |
| |
| public class BinaryBackendEntry implements BackendEntry { |
| |
| private final HugeType type; |
| private final BinaryId id; |
| private Id subId; |
| private final List<BackendColumn> columns; |
| private long ttl; |
| private boolean olap; |
| |
| public BinaryBackendEntry(HugeType type, byte[] bytes) { |
| this(type, BytesBuffer.wrap(bytes).parseId(type, false)); |
| } |
| |
| public BinaryBackendEntry(HugeType type, byte[] bytes, boolean enablePartition) { |
| this(type, BytesBuffer.wrap(bytes).parseId(type, enablePartition)); |
| } |
| |
| public BinaryBackendEntry(HugeType type, BinaryId id) { |
| this.type = type; |
| this.id = id; |
| this.subId = null; |
| this.columns = new ArrayList<>(); |
| this.ttl = 0L; |
| this.olap = false; |
| } |
| |
| @Override |
| public HugeType type() { |
| return this.type; |
| } |
| |
| @Override |
| public BinaryId id() { |
| return this.id; |
| } |
| |
| @Override |
| public Id originId() { |
| return this.id.origin(); |
| } |
| |
| @Override |
| public Id subId() { |
| return this.subId; |
| } |
| |
| public void subId(Id subId) { |
| this.subId = subId; |
| } |
| |
| public void ttl(long ttl) { |
| this.ttl = ttl; |
| } |
| |
| @Override |
| public long ttl() { |
| return this.ttl; |
| } |
| |
| public void olap(boolean olap) { |
| this.olap = olap; |
| } |
| |
| @Override |
| public boolean olap() { |
| return this.olap; |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("%s: %s", this.id, this.columns.toString()); |
| } |
| |
| public BackendColumn column(byte[] name) { |
| for (BackendColumn col : this.columns) { |
| if (Bytes.equals(col.name, name)) { |
| return col; |
| } |
| } |
| return null; |
| } |
| |
| public void column(BackendColumn column) { |
| this.columns.add(column); |
| } |
| |
| public void column(byte[] name, byte[] value) { |
| E.checkNotNull(name, "name"); |
| value = value != null ? value : BytesBuffer.BYTES_EMPTY; |
| this.columns.add(BackendColumn.of(name, value)); |
| } |
| |
| @Override |
| public Collection<BackendColumn> columns() { |
| return Collections.unmodifiableList(this.columns); |
| } |
| |
| @Override |
| public int columnsSize() { |
| return this.columns.size(); |
| } |
| |
| @Override |
| public void columns(Collection<BackendColumn> bytesColumns) { |
| this.columns.addAll(bytesColumns); |
| } |
| |
| @Override |
| public void columns(BackendColumn bytesColumn) { |
| this.columns.add(bytesColumn); |
| long maxSize = BackendEntryIterator.INLINE_BATCH_SIZE; |
| if (this.columns.size() > maxSize) { |
| E.checkState(false, "Too many columns in one entry: %s", maxSize); |
| } |
| } |
| |
| public BackendColumn removeColumn(int index) { |
| return this.columns.remove(index); |
| } |
| |
| @Override |
| public void merge(BackendEntry other) { |
| for (BackendColumn col : other.columns()) { |
| BackendColumn origin = this.column(col.name); |
| if (origin != null) { |
| origin.value = col.value; |
| } else { |
| this.column(col); |
| } |
| } |
| } |
| |
| @Override |
| public boolean mergeable(BackendEntry other) { |
| if (!(other instanceof BinaryBackendEntry)) { |
| return false; |
| } |
| if (!this.id().equals(other.id())) { |
| return false; |
| } |
| this.columns(other.columns()); |
| return true; |
| } |
| |
| @Override |
| public void clear() { |
| this.columns.clear(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (!(obj instanceof BinaryBackendEntry)) { |
| return false; |
| } |
| BinaryBackendEntry other = (BinaryBackendEntry) obj; |
| if (this.id() != other.id() && !this.id().equals(other.id())) { |
| return false; |
| } |
| if (this.columns.size() != other.columns.size()) { |
| return false; |
| } |
| return this.columns.containsAll(other.columns); |
| } |
| |
| public int hashCode() { |
| return this.id().hashCode() ^ this.columns.size(); |
| } |
| |
| protected static final class BinaryId implements Id { |
| |
| private final byte[] bytes; |
| private final Id id; |
| |
| public BinaryId(byte[] bytes, Id id) { |
| this.bytes = bytes; |
| this.id = id; |
| } |
| |
| public Id origin() { |
| return this.id; |
| } |
| |
| @Override |
| public IdType type() { |
| return IdType.UNKNOWN; |
| } |
| |
| @Override |
| public Object asObject() { |
| return ByteBuffer.wrap(this.bytes); |
| } |
| |
| @Override |
| public String asString() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public long asLong() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public int compareTo(Id other) { |
| return Bytes.compare(this.bytes, other.asBytes()); |
| } |
| |
| @Override |
| public byte[] asBytes() { |
| return this.bytes; |
| } |
| |
| public byte[] asBytes(int offset) { |
| E.checkArgument(offset < this.bytes.length, |
| "Invalid offset %s, must be < length %s", |
| offset, this.bytes.length); |
| return Arrays.copyOfRange(this.bytes, offset, this.bytes.length); |
| } |
| |
| @Override |
| public int length() { |
| return this.bytes.length; |
| } |
| |
| @Override |
| public int hashCode() { |
| return ByteBuffer.wrap(this.bytes).hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (!(other instanceof BinaryId)) { |
| return false; |
| } |
| return Arrays.equals(this.bytes, ((BinaryId) other).bytes); |
| } |
| |
| @Override |
| public String toString() { |
| return "0x" + Bytes.toHex(this.bytes); |
| } |
| } |
| } |