io.trino.memory.MemoryResource Maven / Gradle / Ivy

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/*
 * 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 io.trino.memory;

import com.google.inject.Inject;
import io.trino.server.security.ResourceSecurity;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.Path;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;

import static io.trino.server.security.ResourceSecurity.AccessType.INTERNAL_ONLY;
import static java.util.Objects.requireNonNull;

/**
 * Manages memory pools on this worker node
 */
@Path("/v1/memory")
public class MemoryResource
{
    private final LocalMemoryManager memoryManager;

    @Inject
    public MemoryResource(LocalMemoryManager memoryManager)
    {
        this.memoryManager = requireNonNull(memoryManager, "memoryManager is null");
    }

    @ResourceSecurity(INTERNAL_ONLY)
    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public MemoryInfo getMemoryInfo()
    {
        return memoryManager.getInfo();
    }
}