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QuestDB is High Performance Time Series Database
/*******************************************************************************
* ___ _ ____ ____
* / _ \ _ _ ___ ___| |_| _ \| __ )
* | | | | | | |/ _ \/ __| __| | | | _ \
* | |_| | |_| | __/\__ \ |_| |_| | |_) |
* \__\_\\__,_|\___||___/\__|____/|____/
*
* Copyright (C) 2014-2016 Appsicle
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see {
private final String id;
private final Class modelClass;
private String location;
private int partitionBy = PartitionBy.DEFAULT;
private int recordHint = Constants.NULL_RECORD_HINT;
private boolean ordered = true;
public JournalKey(String id) {
this.id = id;
this.modelClass = null;
}
public JournalKey(String id, Class modelClass, String location, int recordHint) {
this.id = id;
this.modelClass = modelClass;
this.location = location;
this.recordHint = recordHint;
}
public JournalKey(Class clazz) {
this.modelClass = clazz;
this.id = clazz.getName();
}
public JournalKey(Class clazz, int recordHint) {
this.modelClass = clazz;
this.id = clazz.getName();
this.recordHint = recordHint;
}
public JournalKey(Class clazz, String location) {
this.modelClass = clazz;
this.id = clazz.getName();
this.location = location;
}
public JournalKey(Class clazz, String location, int partitionBy) {
this.modelClass = clazz;
this.id = clazz.getName();
this.location = location;
this.partitionBy = partitionBy;
}
public JournalKey(Class clazz, String location, int partitionBy, int recordHint) {
this.modelClass = clazz;
this.id = clazz.getName();
this.location = location;
this.partitionBy = partitionBy;
this.recordHint = recordHint;
}
public JournalKey(Class clazz, String location, int partitionBy, int recordHint, boolean ordered) {
this.modelClass = clazz;
this.id = clazz.getName();
this.location = location;
this.partitionBy = partitionBy;
this.recordHint = recordHint;
this.ordered = ordered;
}
public JournalKey(Class clazz, String location, int partitionBy, boolean ordered) {
this.modelClass = clazz;
this.id = clazz.getName();
this.location = location;
this.partitionBy = partitionBy;
this.ordered = ordered;
}
public JournalKey(String clazz, String location, int partitionBy, int recordHint, boolean ordered) {
this.modelClass = null;
this.id = clazz;
this.location = location;
this.partitionBy = partitionBy;
this.recordHint = recordHint;
this.ordered = ordered;
}
public static JournalKey fromBuffer(ByteBuffer buffer) {
// id
int clazzLen = buffer.getInt();
byte[] clazz = new byte[clazzLen];
buffer.get(clazz);
// location
int locLen = buffer.getInt();
char[] location = null;
if (locLen > 0) {
location = new char[locLen];
for (int i = 0; i < location.length; i++) {
location[i] = buffer.getChar();
}
}
// partitionBy
int partitionBy = buffer.get();
// recordHint
int recordHint = buffer.getInt();
// ordered
boolean ordered = buffer.get() == 1;
return new JournalKey<>(new String(clazz, Files.UTF_8), location == null ? null : new String(location), partitionBy, recordHint, ordered);
}
public int getBufferSize() {
return 4 + id.getBytes(Files.UTF_8).length + 4 + 2 * (location == null ? 0 : location.length()) + 1 + 1 + 4;
}
public String getId() {
return id;
}
public String getLocation() {
return location;
}
public Class getModelClass() {
return modelClass;
}
public int getPartitionBy() {
return partitionBy;
}
public int getRecordHint() {
return recordHint;
}
@Override
public int hashCode() {
int result = id != null ? id.hashCode() : 0;
result = 31 * result + (location != null ? location.hashCode() : 0);
result = 31 * result + partitionBy;
result = 31 * result + recordHint;
return 31 * result + (ordered ? 1 : 0);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof JournalKey)) return false;
JournalKey that = (JournalKey) o;
return ordered == that.ordered && recordHint == that.recordHint && !(id != null ? !id.equals(that.id) : that.id != null) && !(location != null ? !location.equals(that.location) : that.location != null) && partitionBy == that.partitionBy;
}
//////////////////////// REPLICATION CODE //////////////////////
@Override
public String toString() {
return "JournalKey{" +
"id=" + id +
", location='" + location + '\'' +
", partitionBy=" + PartitionBy.toString(partitionBy) +
", recordHint=" + recordHint +
", ordered=" + ordered +
'}';
}
public boolean isOrdered() {
return ordered;
}
public String path() {
return location == null ? id : location;
}
public void write(ByteBuffer buffer) {
// id
buffer.putInt(id.length());
byte[] bytes = id.getBytes(Files.UTF_8);
for (int i = 0; i < bytes.length; i++) {
buffer.put(bytes[i]);
}
// location
ByteBuffers.putStringDW(buffer, location);
// partition type
buffer.put((byte) partitionBy);
// recordHint
buffer.putInt(recordHint);
// ordered
buffer.put((byte) (ordered ? 1 : 0));
}
}