fe/src/main/java/org/apache/doris/common/proc/MonitorProcDir.java

// 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.doris.common.proc;

import org.apache.doris.common.AnalysisException;

import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;

import java.util.List;

public class MonitorProcDir implements ProcDirInterface {
    public static final ImmutableList<String> TITLE_NAMES = new ImmutableList.Builder<String>()
            .add("Name").add("Info")
            .build();

    public MonitorProcDir() {

    }

    @Override
    public ProcResult fetchResult() throws AnalysisException {
        BaseProcResult result = new BaseProcResult();
        result.setNames(TITLE_NAMES);

        List<String> jvmRow = Lists.newArrayList();
        jvmRow.add("jvm");
        jvmRow.add(" ");
        result.addRow(jvmRow);

        return result;
    }

    @Override
    public boolean register(String name, ProcNodeInterface node) {
        return false;
    }

    @Override
    public ProcNodeInterface lookup(String name) throws AnalysisException {
        if (Strings.isNullOrEmpty(name)) {
            throw new AnalysisException("name is null");
        }

        if (name.equalsIgnoreCase("jvm")) {
            return new JvmProcDir();
        } else {
            throw new AnalysisException("unknown name: " + name);
        }
    }

}