changeset 2648:e4c63e795c39 web-gateway

Add TypeAdapter for serializing VmClassStat objects.
author Joshua Matsuoka <jmatsuok@redhat.com>
date Tue, 18 Apr 2017 11:22:31 -0400
parents 7533f5833d4f
children 79ec3fd40d61
files plugins/vm-classstat/common/pom.xml plugins/vm-classstat/common/src/main/java/com/redhat/thermostat/vm/classstat/common/internal/VmClassStatTypeAdapter.java plugins/vm-classstat/common/src/test/java/com/redhat/thermostat/vm/classstat/common/internal/VmClassStatTypeAdapterTest.java
diffstat 3 files changed, 163 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/plugins/vm-classstat/common/pom.xml	Wed Apr 12 13:23:19 2017 -0400
+++ b/plugins/vm-classstat/common/pom.xml	Tue Apr 18 11:22:31 2017 -0400
@@ -124,5 +124,10 @@
       <version>${project.version}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>${gson.version}</version>
+    </dependency>
   </dependencies>
 </project>
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/vm-classstat/common/src/main/java/com/redhat/thermostat/vm/classstat/common/internal/VmClassStatTypeAdapter.java	Tue Apr 18 11:22:31 2017 -0400
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2012-2017 Red Hat, Inc.
+ *
+ * This file is part of Thermostat.
+ *
+ * Thermostat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2, or (at your
+ * option) any later version.
+ *
+ * Thermostat is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Thermostat; see the file COPYING.  If not see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Linking this code with other modules is making a combined work
+ * based on this code.  Thus, the terms and conditions of the GNU
+ * General Public License cover the whole combination.
+ *
+ * As a special exception, the copyright holders of this code give
+ * you permission to link this code with independent modules to
+ * produce an executable, regardless of the license terms of these
+ * independent modules, and to copy and distribute the resulting
+ * executable under terms of your choice, provided that you also
+ * meet, for each linked independent module, the terms and conditions
+ * of the license of that module.  An independent module is a module
+ * which is not derived from or based on this code.  If you modify
+ * this code, you may extend this exception to your version of the
+ * library, but you are not obligated to do so.  If you do not wish
+ * to do so, delete this exception statement from your version.
+ */
+
+package com.redhat.thermostat.vm.classstat.common.internal;
+
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+import com.redhat.thermostat.vm.classstat.common.model.VmClassStat;
+
+import com.google.gson.TypeAdapter;
+
+import java.io.IOException;
+
+public class VmClassStatTypeAdapter extends TypeAdapter<VmClassStat> {
+
+    private static final String TYPE_LONG = "$numberLong";
+    private static final String VM_ID = "vmId";
+    private static final String AGENT_ID = "agentId";
+    private static final String LOADED_CLASSES = "loadedClasses";
+    private static final String LOADED_BYTES = "loadedBytes";
+    private static final String UNLOADED_CLASSES = "unloadedClasses";
+    private static final String UNLOADED_BYTES = "unloadedBytes";
+    private static final String CLASS_LOAD_TIME = "classLoadTime";
+    private static final String TIMESTAMP = "timeStamp";
+
+    @Override
+    public VmClassStat read(JsonReader in) throws IOException {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void write(JsonWriter out, VmClassStat stat) throws IOException {
+        out.beginObject();
+        out.name(VM_ID);
+        out.value(stat.getVmId());
+        out.name(AGENT_ID);
+        out.value(stat.getAgentId());
+        out.name(LOADED_CLASSES);
+        writeLong(out, stat.getLoadedClasses());
+        out.name(LOADED_BYTES);
+        writeLong(out, stat.getLoadedBytes());
+        out.name(UNLOADED_CLASSES);
+        writeLong(out, stat.getUnloadedClasses());
+        out.name(UNLOADED_BYTES);
+        writeLong(out, stat.getUnloadedBytes());
+        out.name(CLASS_LOAD_TIME);
+        writeLong(out, stat.getClassLoadTime());
+        out.name(TIMESTAMP);
+        writeLong(out, stat.getTimeStamp());
+        out.endObject();
+    }
+
+    private void writeLong(JsonWriter out, long timestamp) throws IOException {
+        // Write MongoDB representation of a Long
+        out.beginObject();
+        out.name(TYPE_LONG);
+        out.value(String.valueOf(timestamp));
+        out.endObject();
+    }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/vm-classstat/common/src/test/java/com/redhat/thermostat/vm/classstat/common/internal/VmClassStatTypeAdapterTest.java	Tue Apr 18 11:22:31 2017 -0400
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2012-2017 Red Hat, Inc.
+ *
+ * This file is part of Thermostat.
+ *
+ * Thermostat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2, or (at your
+ * option) any later version.
+ *
+ * Thermostat is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Thermostat; see the file COPYING.  If not see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Linking this code with other modules is making a combined work
+ * based on this code.  Thus, the terms and conditions of the GNU
+ * General Public License cover the whole combination.
+ *
+ * As a special exception, the copyright holders of this code give
+ * you permission to link this code with independent modules to
+ * produce an executable, regardless of the license terms of these
+ * independent modules, and to copy and distribute the resulting
+ * executable under terms of your choice, provided that you also
+ * meet, for each linked independent module, the terms and conditions
+ * of the license of that module.  An independent module is a module
+ * which is not derived from or based on this code.  If you modify
+ * this code, you may extend this exception to your version of the
+ * library, but you are not obligated to do so.  If you do not wish
+ * to do so, delete this exception statement from your version.
+ */
+
+package com.redhat.thermostat.vm.classstat.common.internal;
+
+import com.google.gson.GsonBuilder;
+import com.google.gson.Gson;
+import org.junit.Test;
+
+import com.redhat.thermostat.vm.classstat.common.model.VmClassStat;
+
+import static org.junit.Assert.assertEquals;
+
+public class VmClassStatTypeAdapterTest {
+
+    @Test
+    public void testRead() {
+        GsonBuilder builder = new GsonBuilder();
+        builder.registerTypeAdapter(VmClassStat.class, new VmClassStatTypeAdapter());
+        Gson gson = builder.create();
+        VmClassStat stat = new VmClassStat();
+        stat.setVmId("1");
+        stat.setAgentId("2");
+        stat.setTimeStamp(100l);
+        stat.setClassLoadTime(2000l);
+        stat.setLoadedBytes(10l);
+        stat.setLoadedClasses(1l);
+        stat.setUnloadedBytes(10l);
+        stat.setUnloadedClasses(1l);
+        assertEquals("{\"vmId\":\"1\",\"agentId\":\"2\",\"loadedClasses\":{\"$numberLong\":\"1\"},\"loadedBytes\":{\"$numberLong\":\"10\"},\"unloadedClasses\":{\"$numberLong\":\"1\"},\"unloadedBytes\":{\"$numberLong\":\"10\"},\"classLoadTime\":{\"$numberLong\":\"2000\"},\"timeStamp\":{\"$numberLong\":\"100\"}}", gson.toJson(stat));
+    }
+}