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javadoc fixes. Removed stack trace instances that were printed to con…
…sole as well as syserr messages.
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237 changes: 120 additions & 117 deletions
237
cas-server-core/src/main/java/org/jasig/cas/monitor/SimpleCacheStatistics.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,117 +1,120 @@ | ||
| /* | ||
| * Licensed to Jasig under one or more contributor license | ||
| * agreements. See the NOTICE file distributed with this work | ||
| * for additional information regarding copyright ownership. | ||
| * Jasig 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 the following location: | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package org.jasig.cas.monitor; | ||
|
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| import java.util.Formatter; | ||
|
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| /** | ||
| * Simple implementation of cache statistics. | ||
| * | ||
| * @author Marvin S. Addison | ||
| * @since 3.5.1 | ||
| */ | ||
| public class SimpleCacheStatistics implements CacheStatistics { | ||
|
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| private static final double BYTES_PER_MB = 1048510.0; | ||
|
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| private final long size; | ||
|
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| private final long capacity; | ||
|
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| private final long evictions; | ||
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| private String name; | ||
|
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|
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| /** | ||
| * Creates a new instance with given parameters. | ||
| * | ||
| * @param size Current cache size (e.g. items, bytes, etc). | ||
| * @param capacity Current cache capacity (e.g. items, bytes, etc). The units of capacity must be equal to size | ||
| * in order to produce a meaningful value for {@link #getPercentFree}. | ||
| * @param evictions Number of evictions reported by cache. | ||
| */ | ||
| public SimpleCacheStatistics(final long size, final long capacity, final long evictions) { | ||
| this.size = size; | ||
| this.capacity = capacity; | ||
| this.evictions = evictions; | ||
| } | ||
|
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||
|
|
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| /** | ||
| * Creates a new named instance with given parameters. | ||
| * | ||
| * @param size Current cache size (e.g. items, bytes, etc). | ||
| * @param capacity Current cache capacity (e.g. items, bytes, etc). The units of capacity must be equal to size | ||
| * in order to produce a meaningful value for {@link #getPercentFree}. | ||
| * @param evictions Number of evictions reported by cache. | ||
| * @param name Name of cache instance to which statistics apply. | ||
| */ | ||
| public SimpleCacheStatistics(final long size, final long capacity, final long evictions, final String name) { | ||
| this.size = size; | ||
| this.capacity = capacity; | ||
| this.evictions = evictions; | ||
| this.name = name; | ||
| } | ||
|
|
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| public long getSize() { | ||
| return this.size; | ||
| } | ||
|
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|
|
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| public long getCapacity() { | ||
| return this.capacity; | ||
| } | ||
|
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|
|
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| public long getEvictions() { | ||
| return this.evictions; | ||
| } | ||
|
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|
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| public int getPercentFree() { | ||
| if (this.capacity == 0) { | ||
| return 0; | ||
| } | ||
| return (int) ((this.capacity - this.size) * 100 / this.capacity); | ||
| } | ||
|
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|
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| public void toString(final StringBuilder builder) { | ||
| if (this.name != null) { | ||
| builder.append(this.name).append(':'); | ||
| } | ||
| final Formatter formatter = new Formatter(builder); | ||
| formatter.format("%.2f", this.size / BYTES_PER_MB); | ||
| builder.append("MB used, "); | ||
| builder.append(getPercentFree()).append("% free, "); | ||
| builder.append(this.evictions).append(" evictions"); | ||
| } | ||
|
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||
|
|
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| /** | ||
| * Gets a descriptive name of the cache instance for which statistics apply. | ||
| * | ||
| * @return Name of cache instance/host to which statistics apply. | ||
| */ | ||
| public String getName() { | ||
| return this.name; | ||
| } | ||
| } | ||
| /* | ||
| * Licensed to Jasig under one or more contributor license | ||
| * agreements. See the NOTICE file distributed with this work | ||
| * for additional information regarding copyright ownership. | ||
| * Jasig 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 the following location: | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package org.jasig.cas.monitor; | ||
|
|
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| import java.util.Formatter; | ||
|
|
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| import org.apache.commons.io.IOUtils; | ||
|
|
||
| /** | ||
| * Simple implementation of cache statistics. | ||
| * | ||
| * @author Marvin S. Addison | ||
| * @since 3.5.1 | ||
| */ | ||
| public class SimpleCacheStatistics implements CacheStatistics { | ||
|
|
||
| private static final double BYTES_PER_MB = 1048510.0; | ||
|
|
||
| private final long size; | ||
|
|
||
| private final long capacity; | ||
|
|
||
| private final long evictions; | ||
|
|
||
| private String name; | ||
|
|
||
|
|
||
| /** | ||
| * Creates a new instance with given parameters. | ||
| * | ||
| * @param size Current cache size (e.g. items, bytes, etc). | ||
| * @param capacity Current cache capacity (e.g. items, bytes, etc). The units of capacity must be equal to size | ||
| * in order to produce a meaningful value for {@link #getPercentFree}. | ||
| * @param evictions Number of evictions reported by cache. | ||
| */ | ||
| public SimpleCacheStatistics(final long size, final long capacity, final long evictions) { | ||
| this.size = size; | ||
| this.capacity = capacity; | ||
| this.evictions = evictions; | ||
| } | ||
|
|
||
|
|
||
| /** | ||
| * Creates a new named instance with given parameters. | ||
| * | ||
| * @param size Current cache size (e.g. items, bytes, etc). | ||
| * @param capacity Current cache capacity (e.g. items, bytes, etc). The units of capacity must be equal to size | ||
| * in order to produce a meaningful value for {@link #getPercentFree}. | ||
| * @param evictions Number of evictions reported by cache. | ||
| * @param name Name of cache instance to which statistics apply. | ||
| */ | ||
| public SimpleCacheStatistics(final long size, final long capacity, final long evictions, final String name) { | ||
| this.size = size; | ||
| this.capacity = capacity; | ||
| this.evictions = evictions; | ||
| this.name = name; | ||
| } | ||
|
|
||
| public long getSize() { | ||
| return this.size; | ||
| } | ||
|
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||
|
|
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| public long getCapacity() { | ||
| return this.capacity; | ||
| } | ||
|
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|
|
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| public long getEvictions() { | ||
| return this.evictions; | ||
| } | ||
|
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|
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| public int getPercentFree() { | ||
| if (this.capacity == 0) { | ||
| return 0; | ||
| } | ||
| return (int) ((this.capacity - this.size) * 100 / this.capacity); | ||
| } | ||
|
|
||
|
|
||
| public void toString(final StringBuilder builder) { | ||
| if (this.name != null) { | ||
| builder.append(this.name).append(':'); | ||
| } | ||
| final Formatter formatter = new Formatter(builder); | ||
| formatter.format("%.2f", this.size / BYTES_PER_MB); | ||
| builder.append("MB used, "); | ||
| builder.append(getPercentFree()).append("% free, "); | ||
| builder.append(this.evictions).append(" evictions"); | ||
| IOUtils.closeQuietly(formatter); | ||
| } | ||
|
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||
|
|
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| /** | ||
| * Gets a descriptive name of the cache instance for which statistics apply. | ||
| * | ||
| * @return Name of cache instance/host to which statistics apply. | ||
| */ | ||
| public String getName() { | ||
| return this.name; | ||
| } | ||
| } |
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