| /* |
| * MetricsRecordImpl.java |
| * |
| * 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.hadoop.metrics.spi; |
| |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.metrics.MetricsException; |
| import org.apache.hadoop.metrics.MetricsRecord; |
| import org.apache.hadoop.metrics.spi.AbstractMetricsContext.TagMap; |
| |
| /** |
| * An implementation of MetricsRecord. Keeps a back-pointer to the context |
| * from which it was created, and delegates back to it on <code>update</code> |
| * and <code>remove()</code>. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Evolving |
| public class MetricsRecordImpl implements MetricsRecord { |
| |
| private TagMap tagTable = new TagMap(); |
| private Map<String,MetricValue> metricTable = new LinkedHashMap<String,MetricValue>(); |
| |
| private String recordName; |
| private AbstractMetricsContext context; |
| |
| |
| /** Creates a new instance of FileRecord */ |
| protected MetricsRecordImpl(String recordName, AbstractMetricsContext context) |
| { |
| this.recordName = recordName; |
| this.context = context; |
| } |
| |
| /** |
| * Returns the record name. |
| * |
| * @return the record name |
| */ |
| public String getRecordName() { |
| return recordName; |
| } |
| |
| /** |
| * Sets the named tag to the specified value. |
| * |
| * @param tagName name of the tag |
| * @param tagValue new value of the tag |
| * @throws MetricsException if the tagName conflicts with the configuration |
| */ |
| public void setTag(String tagName, String tagValue) { |
| if (tagValue == null) { |
| tagValue = ""; |
| } |
| tagTable.put(tagName, tagValue); |
| } |
| |
| /** |
| * Sets the named tag to the specified value. |
| * |
| * @param tagName name of the tag |
| * @param tagValue new value of the tag |
| * @throws MetricsException if the tagName conflicts with the configuration |
| */ |
| public void setTag(String tagName, int tagValue) { |
| tagTable.put(tagName, Integer.valueOf(tagValue)); |
| } |
| |
| /** |
| * Sets the named tag to the specified value. |
| * |
| * @param tagName name of the tag |
| * @param tagValue new value of the tag |
| * @throws MetricsException if the tagName conflicts with the configuration |
| */ |
| public void setTag(String tagName, long tagValue) { |
| tagTable.put(tagName, Long.valueOf(tagValue)); |
| } |
| |
| /** |
| * Sets the named tag to the specified value. |
| * |
| * @param tagName name of the tag |
| * @param tagValue new value of the tag |
| * @throws MetricsException if the tagName conflicts with the configuration |
| */ |
| public void setTag(String tagName, short tagValue) { |
| tagTable.put(tagName, Short.valueOf(tagValue)); |
| } |
| |
| /** |
| * Sets the named tag to the specified value. |
| * |
| * @param tagName name of the tag |
| * @param tagValue new value of the tag |
| * @throws MetricsException if the tagName conflicts with the configuration |
| */ |
| public void setTag(String tagName, byte tagValue) { |
| tagTable.put(tagName, Byte.valueOf(tagValue)); |
| } |
| |
| /** |
| * Removes any tag of the specified name. |
| */ |
| public void removeTag(String tagName) { |
| tagTable.remove(tagName); |
| } |
| |
| /** |
| * Sets the named metric to the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue new value of the metric |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void setMetric(String metricName, int metricValue) { |
| setAbsolute(metricName, Integer.valueOf(metricValue)); |
| } |
| |
| /** |
| * Sets the named metric to the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue new value of the metric |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void setMetric(String metricName, long metricValue) { |
| setAbsolute(metricName, Long.valueOf(metricValue)); |
| } |
| |
| /** |
| * Sets the named metric to the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue new value of the metric |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void setMetric(String metricName, short metricValue) { |
| setAbsolute(metricName, Short.valueOf(metricValue)); |
| } |
| |
| /** |
| * Sets the named metric to the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue new value of the metric |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void setMetric(String metricName, byte metricValue) { |
| setAbsolute(metricName, Byte.valueOf(metricValue)); |
| } |
| |
| /** |
| * Sets the named metric to the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue new value of the metric |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void setMetric(String metricName, float metricValue) { |
| setAbsolute(metricName, new Float(metricValue)); |
| } |
| |
| /** |
| * Increments the named metric by the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue incremental value |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void incrMetric(String metricName, int metricValue) { |
| setIncrement(metricName, Integer.valueOf(metricValue)); |
| } |
| |
| /** |
| * Increments the named metric by the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue incremental value |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void incrMetric(String metricName, long metricValue) { |
| setIncrement(metricName, Long.valueOf(metricValue)); |
| } |
| |
| /** |
| * Increments the named metric by the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue incremental value |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void incrMetric(String metricName, short metricValue) { |
| setIncrement(metricName, Short.valueOf(metricValue)); |
| } |
| |
| /** |
| * Increments the named metric by the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue incremental value |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void incrMetric(String metricName, byte metricValue) { |
| setIncrement(metricName, Byte.valueOf(metricValue)); |
| } |
| |
| /** |
| * Increments the named metric by the specified value. |
| * |
| * @param metricName name of the metric |
| * @param metricValue incremental value |
| * @throws MetricsException if the metricName or the type of the metricValue |
| * conflicts with the configuration |
| */ |
| public void incrMetric(String metricName, float metricValue) { |
| setIncrement(metricName, new Float(metricValue)); |
| } |
| |
| private void setAbsolute(String metricName, Number metricValue) { |
| metricTable.put(metricName, new MetricValue(metricValue, MetricValue.ABSOLUTE)); |
| } |
| |
| private void setIncrement(String metricName, Number metricValue) { |
| metricTable.put(metricName, new MetricValue(metricValue, MetricValue.INCREMENT)); |
| } |
| |
| /** |
| * Updates the table of buffered data which is to be sent periodically. |
| * If the tag values match an existing row, that row is updated; |
| * otherwise, a new row is added. |
| */ |
| public void update() { |
| context.update(this); |
| } |
| |
| /** |
| * Removes the row, if it exists, in the buffered data table having tags |
| * that equal the tags that have been set on this record. |
| */ |
| public void remove() { |
| context.remove(this); |
| } |
| |
| TagMap getTagTable() { |
| return tagTable; |
| } |
| |
| Map<String, MetricValue> getMetricTable() { |
| return metricTable; |
| } |
| } |