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SNAMP Management Utilities

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package com.bytex.snamp.management.shell;

import com.bytex.snamp.configuration.EntityMap;
import com.bytex.snamp.configuration.ThreadPoolConfiguration;
import org.apache.karaf.shell.api.action.Command;
import org.apache.karaf.shell.api.action.lifecycle.Service;

import java.io.PrintWriter;

/**
 * Prints list of existing thread pools.
 */
@Command(scope = com.bytex.snamp.shell.SnampShellCommand.SCOPE,
        name = "thread-pools",
        description = "List of SNAMP thread pools")
@Service
public final class ListOfThreadPoolsCommand extends ThreadPoolCommand {

    private static void printThreadPoolConfig(final String name,
                                              final ThreadPoolConfiguration config,
                                              final PrintWriter output) {
        output
                .append(name).append(System.lineSeparator())
                .append(String.format("MinPoolSize: %s", config.getMinPoolSize())).append(System.lineSeparator())
                .append(String.format("MaxPoolSize: %s", config.getMaxPoolSize())).append(System.lineSeparator())
                .append(String.format("KeepAliveTime: %s", config.getKeepAliveTime())).append(System.lineSeparator())
                .append(String.format("Threads Priority: %s", config.getThreadPriority())).append(System.lineSeparator())
                .append(String.format("Queue Size: %s", config.getQueueSize() == ThreadPoolConfiguration.INFINITE_QUEUE_SIZE ? "UNBOUNDED" : config.getQueueSize())).append(System.lineSeparator());
    }

    @Override
    boolean doExecute(final EntityMap configuration, final PrintWriter output) {
        output.append(System.lineSeparator());
        configuration.forEach((name, value) -> {
            printThreadPoolConfig(name, value, output);
            output.append(System.lineSeparator());
        });
        return false;
    }
}