add mock modules and use to test async plugin (#168)

mock/config-mock/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (c) 2021, MegaEase
+  ~ All rights reserved.
+  ~
+  ~ Licensed 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.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>mock</artifactId>
+        <groupId>com.megaease.easeagent</groupId>
+        <version>2.0.0</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>config-mock</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>config</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>log4j2-mock</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+
+</project>

mock/config-mock/src/main/java/com/megaease/easeagent/mock/config/ConfigMock.java

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+/*
+ * Copyright (c) 2021, MegaEase
+ * All rights reserved.
+ *
+ * Licensed 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.megaease.easeagent.mock.config;
+
+import com.megaease.easeagent.config.ConfigFactory;
+import com.megaease.easeagent.config.Configs;
+
+import java.io.File;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ConfigMock {
+    private static final String MOCK_CONFIG_FILE = "mock_agent.properties";
+    private static final Configs CONFIGS;
+
+    static {
+        Map<String, String> initConfigs = new HashMap<>();
+        initConfigs.put("name", "demo-service");
+        initConfigs.put("system", "demo-system");
+
+        initConfigs.put("observability.outputServer.timeout", "10000");
+        initConfigs.put("observability.outputServer.enabled", "true");
+        initConfigs.put("observability.tracings.output.enabled", "true");
+        initConfigs.put("plugin.observability.global.tracing.enabled", "true");
+        initConfigs.put("plugin.observability.global.metric.enabled", "true");
+        CONFIGS = new Configs(initConfigs);
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+        URL url = classLoader.getResource(MOCK_CONFIG_FILE);
+        if (url != null) {
+            Configs configsFromOuterFile = ConfigFactory.loadFromFile(new File(url.getFile()));
+            CONFIGS.updateConfigsNotNotify(configsFromOuterFile.getConfigs());
+        }
+    }
+
+    public static Configs getCONFIGS() {
+        return CONFIGS;
+    }
+}

mock/config-mock/src/test/java/com/megaease/easeagent/mock/config/ConfigMockTest.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2021, MegaEase
+ * All rights reserved.
+ *
+ * Licensed 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.megaease.easeagent.mock.config;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class ConfigMockTest {
+
+    @Test
+    public void getCONFIGS() {
+        assertTrue(ConfigMock.getCONFIGS().getBoolean("test.mock.key"));
+        assertEquals(ConfigMock.getCONFIGS().getString("test.mock.keyStr"), "testValue");
+        assertNull(ConfigMock.getCONFIGS().getString("test.mock.keyStrAAAAAAAAAA"));
+    }
+}

mock/config-mock/src/test/resources/mock_agent.properties

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+test.mock.key=true
+test.mock.keyStr=testValue

mock/context-mock/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (c) 2021, MegaEase
+  ~ All rights reserved.
+  ~
+  ~ Licensed 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.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>mock</artifactId>
+        <groupId>com.megaease.easeagent</groupId>
+        <version>2.0.0</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>context-mock</artifactId>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>context</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>config-mock</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>utils-mock</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>

mock/context-mock/src/main/java/com/megaease/easeagent/mock/context/ContextManagerMock.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2021, MegaEase
+ * All rights reserved.
+ *
+ * Licensed 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.megaease.easeagent.mock.context;
+
+import com.megaease.easeagent.context.ContextManager;
+import com.megaease.easeagent.mock.config.ConfigMock;
+import com.megaease.easeagent.mock.utils.MockProvider;
+import com.megaease.easeagent.plugin.api.Context;
+import com.megaease.easeagent.plugin.api.InitializeContext;
+import com.megaease.easeagent.plugin.api.metric.MetricProvider;
+import com.megaease.easeagent.plugin.api.trace.TracingProvider;
+import com.megaease.easeagent.plugin.bridge.EaseAgent;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+public class ContextManagerMock {
+    private static final ContextManager CONTEXT_MANAGER_MOCK = ContextManager.build(ConfigMock.getCONFIGS());
+
+    static {
+        ServiceLoader<MockProvider> loader = ServiceLoader.load(MockProvider.class);
+        Iterator<MockProvider> iterator = loader.iterator();
+        while (iterator.hasNext()) {
+            MockProvider mockProvider = iterator.next();
+            Object o = mockProvider.get();
+            if (o == null) {
+                continue;
+            }
+            if (o instanceof TracingProvider) {
+                CONTEXT_MANAGER_MOCK.setTracing((TracingProvider) o);
+            } else if (o instanceof MetricProvider) {
+                CONTEXT_MANAGER_MOCK.setMetric((MetricProvider) o);
+            }
+        }
+    }
+
+    public static ContextManager getContextManagerMock() {
+        return CONTEXT_MANAGER_MOCK;
+    }
+
+    public static Context getContext() {
+        return EaseAgent.contextSupplier.get();
+    }
+
+    public static InitializeContext getInitializeContext() {
+        return EaseAgent.initializeContextSupplier.get();
+    }
+}

mock/metrics-mock/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright (c) 2021, MegaEase
+  ~ All rights reserved.
+  ~
+  ~ Licensed 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.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>mock</artifactId>
+        <groupId>com.megaease.easeagent</groupId>
+        <version>2.0.0</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>metrics-mock</artifactId>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>metrics</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>report-mock</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.megaease.easeagent</groupId>
+            <artifactId>utils-mock</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>

mock/metrics-mock/src/main/java/com/megaease/easeagent/mock/metrics/MetricProviderMock.java

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+/*
+ * Copyright (c) 2021, MegaEase
+ * All rights reserved.
+ *
+ * Licensed 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.megaease.easeagent.mock.metrics;
+
+import com.megaease.easeagent.metrics.MetricProvider;
+import com.megaease.easeagent.metrics.jvm.gc.JVMGCMetricV2;
+import com.megaease.easeagent.metrics.jvm.memory.JVMMemoryMetricV2;
+import com.megaease.easeagent.mock.config.ConfigMock;
+import com.megaease.easeagent.mock.report.ReportMock;
+import com.megaease.easeagent.mock.utils.MockProvider;
+
+public class MetricProviderMock implements MockProvider {
+    private static final MetricProvider METRIC_PROVIDER = new MetricProvider();
+    private static final JVMGCMetricV2 JVMGC_METRIC_V_2;
+    private static final JVMMemoryMetricV2 JVM_MEMORY_METRIC_V_2;
+
+    static {
+        METRIC_PROVIDER.setConfig(ConfigMock.getCONFIGS());
+        METRIC_PROVIDER.setAgentReport(ReportMock.getAgentReport());
+        JVMGC_METRIC_V_2 = METRIC_PROVIDER.jvmGcMetricV2();
+        JVM_MEMORY_METRIC_V_2 = METRIC_PROVIDER.jvmMemoryMetricV2();
+    }
+
+
+    public static MetricProvider getMetricProvider() {
+        return METRIC_PROVIDER;
+    }
+
+    public static JVMGCMetricV2 getJvmgcMetricV2() {
+        return JVMGC_METRIC_V_2;
+    }
+
+    public static JVMMemoryMetricV2 getJvmMemoryMetricV2() {
+        return JVM_MEMORY_METRIC_V_2;
+    }
+
+    @Override
+    public Object get() {
+        return METRIC_PROVIDER;
+    }
+}

mock/metrics-mock/src/main/resources/META-INF/services/com.megaease.easeagent.mock.utils.MockProvider

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+com.megaease.easeagent.mock.metrics.MetricProviderMock