HBASE-26192 Master UI hbck should provide a JSON formatted output option (#5772)

Signed-off-by: Andrew Purtell <apurtell@apache.org>

Author: mihir6692

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckEmptyRegionInfo.java

@@ -0,0 +1,38 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO to present Empty Region Info from Catalog Janitor Inconsistencies Report via REST API. These
+ * inconsistencies are shown on hbck.jsp page on Active HMaster UI as part of Catalog Janitor
+ * inconsistencies.
+ */
+@InterfaceAudience.Public
+public class HbckEmptyRegionInfo {
+  private final String regionInfo;
+
+  public HbckEmptyRegionInfo(String emptyRegionInfo) {
+    this.regionInfo = emptyRegionInfo;
+  }
+
+  public String getRegionInfo() {
+    return regionInfo;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckInconsistentRegions.java

@@ -0,0 +1,51 @@
+/*
+ * 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.hbase;
+
+import java.util.List;
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO to present HBCK Inconsistent Regions from HBCK Inconsistencies Report via REST API. These
+ * inconsistencies are shown on hbck.jsp page on Active HMaster UI as part of HBCK inconsistencies.
+ */
+@InterfaceAudience.Public
+public class HbckInconsistentRegions {
+  private final String regionId;
+  private final HbckServerName serverNameInMeta;
+  private final List<HbckServerName> listOfServers;
+
+  public HbckInconsistentRegions(String inconsistentRegionId, HbckServerName serverNameInMeta,
+    List<HbckServerName> listOfServerName) {
+    this.regionId = inconsistentRegionId;
+    this.serverNameInMeta = serverNameInMeta;
+    this.listOfServers = listOfServerName;
+  }
+
+  public String getRegionId() {
+    return regionId;
+  }
+
+  public HbckServerName getServerNameInMeta() {
+    return serverNameInMeta;
+  }
+
+  public List<HbckServerName> getListOfServers() {
+    return listOfServers;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckOrphanRegionsOnFS.java

@@ -0,0 +1,43 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO to present Orphan Region on FS from HBCK Inconsistencies Report via REST API. These
+ * inconsistencies are shown on hbck.jsp page on Active HMaster UI as part of HBCK Inconsistencies.
+ */
+@InterfaceAudience.Public
+public class HbckOrphanRegionsOnFS {
+  private final String regionId;
+  private final String regionHdfsPath;
+
+  public HbckOrphanRegionsOnFS(String regionId, String orphanRegionHdfsPath) {
+    this.regionId = regionId;
+    this.regionHdfsPath = orphanRegionHdfsPath;
+  }
+
+  public String getRegionId() {
+    return regionId;
+  }
+
+  public String getRegionHdfsPath() {
+    return regionHdfsPath;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckOrphanRegionsOnRS.java

@@ -0,0 +1,43 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO to present Orphan Region on RS from HBCK Inconsistencies Report via REST API. These
+ * inconsistencies are shown on hbck.jsp page on Active HMaster UI as part of HBCK Inconsistencies.
+ */
+@InterfaceAudience.Public
+public class HbckOrphanRegionsOnRS {
+  private final String regionId;
+  private final HbckServerName rsName;
+
+  public HbckOrphanRegionsOnRS(String orphanRegionId, HbckServerName orphanRegionRsName) {
+    this.regionId = orphanRegionId;
+    this.rsName = orphanRegionRsName;
+  }
+
+  public String getRegionId() {
+    return regionId;
+  }
+
+  public HbckServerName getRsName() {
+    return rsName;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckOverlapRegions.java

@@ -0,0 +1,44 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO to present Region Overlap from Catalog Janitor Inconsistencies Report via REST API. These
+ * inconsistencies are shown on hbck.jsp page on Active HMaster UI as part of Catalog Janitor
+ * inconsistencies.
+ */
+@InterfaceAudience.Public
+public class HbckOverlapRegions {
+  private final HbckRegionDetails region1Info;
+  private final HbckRegionDetails region2Info;
+
+  public HbckOverlapRegions(HbckRegionDetails region1Info, HbckRegionDetails region2Info) {
+    this.region1Info = region1Info;
+    this.region2Info = region2Info;
+  }
+
+  public HbckRegionDetails getRegion1Info() {
+    return region1Info;
+  }
+
+  public HbckRegionDetails getRegion2Info() {
+    return region2Info;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckRegionDetails.java

@@ -0,0 +1,54 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO class for HBCK RegionInfo in HBCK Inconsistencies report.
+ */
+@InterfaceAudience.Public
+public class HbckRegionDetails {
+  private final String regionId;
+  private final String tableName;
+  private final String startKey;
+  private final String endKey;
+
+  public HbckRegionDetails(String regionId, String tableName, String startKey, String endKey) {
+    this.regionId = regionId;
+    this.tableName = tableName;
+    this.startKey = startKey;
+    this.endKey = endKey;
+  }
+
+  public String getRegionId() {
+    return regionId;
+  }
+
+  public String getTableName() {
+    return tableName;
+  }
+
+  public String getStartKey() {
+    return startKey;
+  }
+
+  public String getEndKey() {
+    return endKey;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckRegionHoles.java

@@ -0,0 +1,44 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO to present Region Holes from Catalog Janitor Inconsistencies Report via REST API. These
+ * inconsistencies are shown on hbck.jsp page on Active HMaster UI as part of Catalog Janitor
+ * inconsistencies.
+ */
+@InterfaceAudience.Public
+public class HbckRegionHoles {
+  private final HbckRegionDetails region1Info;
+  private final HbckRegionDetails region2Info;
+
+  public HbckRegionHoles(HbckRegionDetails region1Info, HbckRegionDetails region2Info) {
+    this.region1Info = region1Info;
+    this.region2Info = region2Info;
+  }
+
+  public HbckRegionDetails getRegion1Info() {
+    return region1Info;
+  }
+
+  public HbckRegionDetails getRegion2Info() {
+    return region2Info;
+  }
+}

hbase-client/src/main/java/org/apache/hadoop/hbase/HbckServerName.java

@@ -0,0 +1,48 @@
+/*
+ * 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.hbase;
+
+import org.apache.yetus.audience.InterfaceAudience;
+
+/**
+ * POJO class for ServerName in HBCK Inconsistencies report.
+ */
+@InterfaceAudience.Public
+public class HbckServerName {
+  private final String hostName;
+  private final int hostPort;
+  private final long startCode;
+
+  public HbckServerName(String hostName, int hostPort, long startCode) {
+    this.hostName = hostName;
+    this.hostPort = hostPort;
+    this.startCode = startCode;
+  }
+
+  public String getHostName() {
+    return hostName;
+  }
+
+  public int getHostPort() {
+    return hostPort;
+  }
+
+  public long getStartCode() {
+    return startCode;
+  }
+}