org.adoptopenjdk.jitwatch.model.PackageManager Maven / Gradle / Ivy

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A Maven plugin that scans the project artifact and its dependencies for methods that cannot be inlined by the JIT compiler. It uses the JarScan utility from the JITWatch project to do that. See https://github.com/AdoptOpenJDK/jitwatch .

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/*
 * Copyright (c) 2013-2015 Chris Newland.
 * Licensed under https://github.com/AdoptOpenJDK/jitwatch/blob/master/LICENSE-BSD
 * Instructions: https://github.com/AdoptOpenJDK/jitwatch/wiki
 */
package org.adoptopenjdk.jitwatch.model;

import static org.adoptopenjdk.jitwatch.core.JITWatchConstants.C_DOT;
import static org.adoptopenjdk.jitwatch.core.JITWatchConstants.DEBUG_LOGGING;
import static org.adoptopenjdk.jitwatch.core.JITWatchConstants.S_EMPTY;
import static org.adoptopenjdk.jitwatch.core.JITWatchConstants.S_ESCAPED_DOT;

import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class PackageManager
{
	private static final Logger logger = LoggerFactory.getLogger(PackageManager.class);

	// class name -> MetaClass
	private Map metaClasses;

	// package name -> MetaPackage
	private Map metaPackages;

	private List roots;

	public PackageManager()
	{
		clear();
	}

	public final void clear()
	{
		metaClasses = new ConcurrentHashMap<>();
		metaPackages = new ConcurrentHashMap<>();
		roots = new CopyOnWriteArrayList<>();
	}

	public void addMetaClass(MetaClass metaClass)
	{
		metaClasses.put(metaClass.getFullyQualifiedName(), metaClass);
	}

	public MetaClass getMetaClass(String className)
	{
		MetaClass result = null;

		if (className != null)
		{
			result = metaClasses.get(className);
		}

		return result;
	}

	public MetaPackage getMetaPackage(String packageName)
	{
		MetaPackage result = null;

		if (packageName != null)
		{
			result = metaPackages.get(packageName);
		}

		return result;
	}

	public MetaPackage buildPackage(String packageName)
	{
		if (DEBUG_LOGGING)
		{
			logger.debug("Building package {}", packageName);
		}

		String[] parts = packageName.split(S_ESCAPED_DOT);

		StringBuilder builder = new StringBuilder();

		MetaPackage mp = null;
		MetaPackage parent = null;

		int depth = 0;

		for (String part : parts)
		{
			if (builder.length() > 0)
			{
				builder.append(C_DOT);
			}

			builder.append(part);

			String nameBuild = builder.toString();

			mp = metaPackages.get(nameBuild);

			if (mp == null)
			{
				mp = new MetaPackage(nameBuild);

				if (depth == 0)
				{
					roots.add(mp);
				}
				else
				{
					parent.addChildPackage(mp);
				}

				metaPackages.put(nameBuild, mp);
			}

			parent = mp;

			depth++;
		}

		if (mp == null)
		{
			// default package ""
			mp = new MetaPackage(S_EMPTY);
			metaPackages.put(S_EMPTY, mp);
		}

		return mp;
	}

	public List getRootPackages()
	{
		return roots;
	}
}