Renamed yang-to-sources-plugin to maven-yang-plugin.

[controller.git] / opendaylight / sal / yang-prototype / code-generator / maven-yang-plugin / src / main / java / org / opendaylight / controller / yang2sources / plugin / YangToSourcesMojo.java

diff --git a/opendaylight/sal/yang-prototype/code-generator/maven-yang-plugin/src/main/java/org/opendaylight/controller/yang2sources/plugin/YangToSourcesMojo.java b/opendaylight/sal/yang-prototype/code-generator/maven-yang-plugin/src/main/java/org/opendaylight/controller/yang2sources/plugin/YangToSourcesMojo.java
new file mode 100644 (file)
index 0000000..2928298
--- /dev/null
+++ b/opendaylight/sal/yang-prototype/code-generator/maven-yang-plugin/src/main/java/org/opendaylight/controller/yang2sources/plugin/YangToSourcesMojo.java
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.yang2sources.plugin;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Map;
+import java.util.Set;
+
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.MojoFailureException;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.opendaylight.controller.yang.model.api.Module;
+import org.opendaylight.controller.yang.model.api.SchemaContext;
+import org.opendaylight.controller.yang.model.parser.api.YangModelParser;
+import org.opendaylight.controller.yang.model.parser.impl.YangModelParserImpl;
+import org.opendaylight.controller.yang2sources.plugin.ConfigArg.CodeGeneratorArg;
+import org.opendaylight.controller.yang2sources.spi.CodeGenerator;
+
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.collect.Maps;
+
+@Mojo(name = "generate-sources", defaultPhase = LifecyclePhase.GENERATE_SOURCES)
+public final class YangToSourcesMojo extends AbstractMojo {
+
+    private static final String LOG_PREFIX = "yang-to-sources:";
+
+    @Parameter(required = true)
+    private CodeGeneratorArg[] codeGenerators;
+
+    @Parameter(required = true)
+    private String yangFilesRootDir;
+
+    private final YangModelParser parser;
+
+    @VisibleForTesting
+    YangToSourcesMojo(CodeGeneratorArg[] codeGeneratorArgs,
+            YangModelParser parser, String yangFilesRootDir) {
+        super();
+        this.codeGenerators = codeGeneratorArgs;
+        this.yangFilesRootDir = yangFilesRootDir;
+        this.parser = parser;
+    }
+
+    public YangToSourcesMojo() {
+        super();
+        parser = new YangModelParserImpl();
+    }
+
+    @Override
+    public void execute() throws MojoExecutionException, MojoFailureException {
+        SchemaContext context = processYang();
+        generateSources(context);
+    }
+
+    /**
+     * Generate {@link SchemaContext} with {@link YangModelParserImpl}
+     */
+    private SchemaContext processYang() throws MojoExecutionException {
+        try {
+            String[] yangFiles = Util.listFilesAsArrayOfPaths(yangFilesRootDir);
+
+            if (yangFiles.length == 0)
+                getLog().warn(
+                        Util.message("No %s file found in %s", LOG_PREFIX,
+                                Util.YANG_SUFFIX, yangFilesRootDir));
+            // TODO only warning or throw exception ?
+
+            Set<Module> parsedYang = parser.parseYangModels(yangFiles);
+            SchemaContext resolveSchemaContext = parser
+                    .resolveSchemaContext(parsedYang);
+            getLog().info(
+                    Util.message("%s files parsed from %s", LOG_PREFIX,
+                            Util.YANG_SUFFIX, Arrays.toString(yangFiles)));
+            return resolveSchemaContext;
+
+            // MojoExecutionException is thrown since execution cannot continue
+        } catch (Exception e) {
+            String message = Util.message("Unable to parse %s files from %s",
+                    LOG_PREFIX, Util.YANG_SUFFIX, yangFilesRootDir);
+            getLog().error(message, e);
+            throw new MojoExecutionException(message, e);
+        }
+    }
+
+    /**
+     * Call generate on every generator from plugin configuration
+     */
+    private void generateSources(SchemaContext context)
+            throws MojoFailureException {
+        if (codeGenerators.length == 0) {
+            getLog().warn(
+                    Util.message("No code generators provided", LOG_PREFIX));
+            return;
+        }
+
+        Map<String, String> thrown = Maps.newHashMap();
+
+        for (CodeGeneratorArg codeGenerator : codeGenerators) {
+            try {
+
+                generateSourcesWithOneGenerator(context, codeGenerator);
+
+            } catch (Exception e) {
+                // try other generators, exception will be thrown after
+                getLog().error(
+                        Util.message(
+                                "Unable to generate sources with %s generator",
+                                LOG_PREFIX,
+                                codeGenerator.getCodeGeneratorClass()), e);
+                thrown.put(codeGenerator.getCodeGeneratorClass(), e.getClass()
+                        .getCanonicalName());
+            }
+        }
+
+        if (!thrown.isEmpty()) {
+            String message = Util
+                    .message(
+                            "One or more code generators failed, including failed list(generatorClass=exception) %s",
+                            LOG_PREFIX, thrown.toString());
+            getLog().error(message);
+            throw new MojoFailureException(message);
+        }
+    }
+
+    /**
+     * Instantiate generator from class and call required method
+     */
+    private void generateSourcesWithOneGenerator(SchemaContext context,
+            CodeGeneratorArg codeGenerator) throws ClassNotFoundException,
+            InstantiationException, IllegalAccessException {
+
+        codeGenerator.check();
+
+        CodeGenerator g = Util.getInstance(
+                codeGenerator.getCodeGeneratorClass(), CodeGenerator.class);
+        getLog().info(
+                Util.message("Code generator instantiated from %s", LOG_PREFIX,
+                        codeGenerator.getCodeGeneratorClass()));
+
+        Collection<File> generated = g.generateSources(context,
+                codeGenerator.getOutputBaseDir());
+        getLog().info(
+                Util.message("Sources generated by %s: %s", LOG_PREFIX,
+                        codeGenerator.getCodeGeneratorClass(), generated));
+    }
+
+}