org.snmp4j.agent.mo.DefaultMOTableModel Maven / Gradle / Ivy
/*_############################################################################
_##
_## SNMP4J-Agent 3 - DefaultMOTableModel.java
_##
_## Copyright (C) 2005-2018 Frank Fock (SNMP4J.org)
_##
_## 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 org.snmp4j.agent.mo;
import org.snmp4j.smi.OID;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.SortedMap;
import java.util.TreeMap;
public class DefaultMOTableModel implements MOTableModel {
protected SortedMap rows = Collections.synchronizedSortedMap(new TreeMap());
protected int columnCount = 0;
public DefaultMOTableModel() {
}
public synchronized R addRow(R row) {
this.columnCount = Math.max(row.size(), columnCount);
return rows.put(row.getIndex(), row);
}
public int getColumnCount() {
return columnCount;
}
public int getRowCount() {
return rows.size();
}
@Override
public boolean isEmpty() {
return rows.isEmpty();
}
public synchronized R getRow(OID index) {
return rows.get(index);
}
public synchronized OID firstIndex() {
if (rows.size() > 0) {
return rows.firstKey();
}
return null;
}
public synchronized Iterator iterator() {
return rows.values().iterator();
}
public synchronized R firstRow() {
OID index = firstIndex();
if (index != null) {
return rows.get(index);
}
return null;
}
public synchronized OID lastIndex() {
if (rows.size() > 0) {
return rows.lastKey();
}
return null;
}
public synchronized R lastRow() {
OID index = lastIndex();
if (index != null) {
return rows.get(index);
}
return null;
}
public boolean containsRow(OID index) {
return rows.containsKey(index);
}
public synchronized Iterator tailIterator(OID lowerBound) {
if (lowerBound == null) {
return iterator();
}
return rows.tailMap(lowerBound).values().iterator();
}
/**
* Dumps a textual representation of the table model content to the specified {@link OutputStream}.
*
* @param os
* an {@link OutputStream} to write the model content to.
*
* @throws IOException
* if a write operation on os
fails with an IO exception.
* @since 1.2.2
*/
public synchronized void dump(OutputStream os) throws IOException {
os.write(("Dump of " + getClass().getName() + ":\n").getBytes());
for (Entry e : rows.entrySet()) {
os.write((e.getKey() + " # " + e.getValue() + "\n").getBytes());
}
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy