http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/750996a0/geode-core/src/main/java/com/gemstone/gemfire/internal/StatArchiveFormat.java
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a/geode-core/src/main/java/com/gemstone/gemfire/internal/StatArchiveFormat.java
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a/geode-core/src/main/java/com/gemstone/gemfire/internal/StatArchiveFormat.java
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-/*
- * 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 com.gemstone.gemfire.internal;
-
-/**
- * StatArchiveFormat defines constants related to the statistic archive
- * file format.
- */
-public interface StatArchiveFormat {
- /**
- * ARCHIVE_VERSION identifies the format of the contents of the archive.
- * It should be changed any time an incompatible change is made.
- * Its current value is <code>3</code>.
- * <p>
- * <ol>
- * <li> Changed from 2 to 3 with addition of
<code>RESOURCE_INSTANCE_INITIALIZE_TOKEN</code>
- * <li> Changed from 3 to 4 with addition of largerBetter boolean in
statistic descriptor
- * </ol>
- */
- public static final byte ARCHIVE_VERSION=4;
-
- /**
- * Token consists of a timestamp and any statistic value changes.
- */
- public static final byte SAMPLE_TOKEN=0;
- /**
- * Token defines a new resource type.
- */
- public static final byte RESOURCE_TYPE_TOKEN=1;
- /**
- * Token defines a new resource instance.
- */
- public static final byte RESOURCE_INSTANCE_CREATE_TOKEN=2;
- /**
- * Token notes that a previous resource instance no longer exists
- * and thus will have any more samples of its statistic values taken.
- */
- public static final byte RESOURCE_INSTANCE_DELETE_TOKEN=3;
- /**
- * Token defines a new resource instance with initial data.
- */
- public static final byte RESOURCE_INSTANCE_INITIALIZE_TOKEN=4;
- /**
- * Token defines a new archive and provides some global information
- * about the environment the archive was created in.
- */
- public static final byte HEADER_TOKEN=77;
-
- /**
- * The value used to signal the end of a list of resource instances.
- */
- public static final int ILLEGAL_RESOURCE_INST_ID=-1;
- /**
- * The maximum value a resource inst id can have and still be stored
- * in the archive as an unsigned byte.
- */
- public static final int MAX_BYTE_RESOURCE_INST_ID=252;
- /**
- * Used to say that the next two bytes contain the resource inst id
- * as an unsigned short.
- */
- public static final int SHORT_RESOURCE_INST_ID_TOKEN=253;
- /**
- * Used to say that the next four bytes contain the resource inst id
- * as an int.
- */
- public static final int INT_RESOURCE_INST_ID_TOKEN=254;
- /**
- * Used to say that the current byte represents the ILLEGAL_RESOURCE_INST_ID.
- */
- public static final int ILLEGAL_RESOURCE_INST_ID_TOKEN=255;
- /**
- * The maximum value a resource inst id can have and still be stored
- * in the archive as an unsigned short.
- */
- public static final int MAX_SHORT_RESOURCE_INST_ID=65535;
- /**
- * The value used to signal the end of a list of statistic samples.
- */
- public static final int ILLEGAL_STAT_OFFSET=255;
-
- /**
- * The maximum value a timestamp can have and still be stored
- * in the archive as an unsigned short.
- */
- public static final int MAX_SHORT_TIMESTAMP=65534;
- /**
- * Means the next 4 bytes contain the timestamp as an int.
- */
- public static final int INT_TIMESTAMP_TOKEN=65535;
-
- /**
- * The maximum value a compact value can have and still be stored
- * in the archive as one byte.
- */
- public static final int MAX_1BYTE_COMPACT_VALUE=Byte.MAX_VALUE;
- /**
- * The minimum value a compact value can have and still be stored
- * in the archive as one byte.
- */
- public static final int MIN_1BYTE_COMPACT_VALUE=Byte.MIN_VALUE+7;
- /**
- * The maximum value a compact value can have and still be stored
- * in the archive as two bytes.
- */
- public static final int MAX_2BYTE_COMPACT_VALUE=Short.MAX_VALUE;
- /**
- * The minimum value a compact value can have and still be stored
- * in the archive as two bytes.
- */
- public static final int MIN_2BYTE_COMPACT_VALUE=Short.MIN_VALUE;
-
- /**
- * Means the next 2 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_2_TOKEN=Byte.MIN_VALUE;
- /**
- * Means the next 3 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_3_TOKEN=Byte.MIN_VALUE+1;
- /**
- * Means the next 4 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_4_TOKEN=Byte.MIN_VALUE+2;
- /**
- * Means the next 5 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_5_TOKEN=Byte.MIN_VALUE+3;
- /**
- * Means the next 6 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_6_TOKEN=Byte.MIN_VALUE+4;
- /**
- * Means the next 7 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_7_TOKEN=Byte.MIN_VALUE+5;
- /**
- * Means the next 8 bytes hold the compact value's data.
- */
- public static final int COMPACT_VALUE_8_TOKEN=Byte.MIN_VALUE+6;
-
- /**
- * Statistic represents a <code>boolean</code> java primitive.
- */
- public static final int BOOLEAN_CODE = 1;
- /**
- * Statistic represents a <code>char</code> java primitive.
- */
- public static final int CHAR_CODE = 2;
- /**
- * Statistic represents a <code>char</code> java primitive.
- */
- public static final int WCHAR_CODE = 12;
- /**
- * Statistic represents a <code>byte</code> java primitive.
- */
- public static final int BYTE_CODE = 3;
- /**
- * Statistic represents a <code>short</code> java primitive.
- */
- public static final int SHORT_CODE = 4;
- /**
- * Statistic represents a <code>int</code> java primitive.
- */
- public static final int INT_CODE = 5;
- /**
- * Statistic represents a <code>long</code> java primitive.
- */
- public static final int LONG_CODE = 6;
- /**
- * Statistic represents a <code>float</code> java primitive.
- */
- public static final int FLOAT_CODE = 7;
- /**
- * Statistic represents a <code>double</code> java primitive.
- */
- public static final int DOUBLE_CODE = 8;
- /**
- * Number of nanoseconds in one millisecond
- */
- public static final long NANOS_PER_MILLI = 1000000;
-
-}
