feat[protobuf]: generate pojo file from proto of protobuf

protocol/src/main/java/com/zfoo/protocol/serializer/protobuf/GeneratePbUtils.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2021 The edap Project
+ *
+ * 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.zfoo.protocol.serializer.protobuf;
+
+import com.zfoo.protocol.collection.CollectionUtils;
+import com.zfoo.protocol.serializer.protobuf.codegen.IfaceGenerator;
+import com.zfoo.protocol.serializer.protobuf.wire.parser.Proto;
+import com.zfoo.protocol.serializer.protobuf.wire.parser.ProtoParser;
+import com.zfoo.protocol.util.FileUtils;
+import com.zfoo.protocol.util.StringUtils;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+public class GeneratePbUtils {
+
+    public static void create(PbBuildOption buildOption) {
+        var protoPathFile = new File(buildOption.getProtoPath());
+        if (!protoPathFile.exists()) {
+            throw new RuntimeException(StringUtils.format("proto path:[{}] not exist", buildOption.getProtoPath()));
+        }
+
+        var protoFiles = FileUtils.getAllReadableFiles(protoPathFile)
+                .stream()
+                .filter(it -> it.getName().toLowerCase().endsWith(".proto"))
+                .toList();
+
+        if (CollectionUtils.isEmpty(protoFiles)) {
+            throw new RuntimeException(StringUtils.format("There are no proto files to build in proto path:[{}]", buildOption.getProtoPath()));
+        }
+
+        var srcPath = new File(buildOption.getOutputPath());
+
+        var protos = parseProtoFile(protoFiles);
+        IfaceGenerator ifaceGenerator = new IfaceGenerator(srcPath, protos);
+        ifaceGenerator.generate();
+    }
+
+    public static List<Proto> parseProtoFile(List<File> protoFiles) {
+        var protos = new ArrayList<Proto>();
+        for (var protoFile : protoFiles) {
+            var strs = FileUtils.readFileToStringList(protoFile)
+                    .stream()
+                    .filter(StringUtils::isNotBlank)
+                    .toArray();
+            var protoString = StringUtils.joinWith(FileUtils.LS, strs);
+            if (StringUtils.isBlank(protoString)) {
+                continue;
+            }
+            ProtoParser parser = new ProtoParser(protoString);
+            Proto proto = parser.parse();
+            proto.setFile(protoFile);
+            protos.add(proto);
+        }
+        return protos;
+    }
+
+}

protocol/src/main/java/com/zfoo/protocol/serializer/protobuf/PbBuildOption.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2021 The edap Project
+ *
+ * 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.zfoo.protocol.serializer.protobuf;
+
+public class PbBuildOption {
+
+    private String protoPath;
+    private String outputPath;
+    private boolean isNested;
+
+    public String getProtoPath() {
+        return protoPath;
+    }
+
+    public void setProtoPath(String protoPath) {
+        this.protoPath = protoPath;
+    }
+
+    public String getOutputPath() {
+        return outputPath;
+    }
+
+    public void setOutputPath(String outputPath) {
+        this.outputPath = outputPath;
+    }
+
+    public boolean isIsNested() {
+        return isNested;
+    }
+
+    public PbBuildOption setIsNested(boolean isNested) {
+        this.isNested = isNested;
+        return this;
+    }
+
+}