Merge "Avoid byte[] allocations in writePackageListLPr"

import com.android.server.pm.PermissionsState.PermissionState;

import java.io.BufferedInputStream;

import java.io.BufferedWriter;

import java.io.FileNotFoundException;

import java.io.InputStream;

import java.io.OutputStreamWriter;

import java.nio.charset.Charset;

import java.util.Collection;

import org.xmlpull.v1.XmlPullParser;

        JournaledFile journal = new JournaledFile(mPackageListFilename, tempFile);

        final File writeTarget = journal.chooseForWrite();

        FileOutputStream fstr = null;

        BufferedOutputStream str = null;

        FileOutputStream fstr;

        BufferedWriter writer = null;

        try {

            fstr = new FileOutputStream(writeTarget);

            str = new BufferedOutputStream(fstr);

            writer = new BufferedWriter(new OutputStreamWriter(fstr, Charset.defaultCharset()));

            FileUtils.setPermissions(fstr.getFD(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);

            StringBuilder sb = new StringBuilder();

                final int[] gids = pkg.getPermissionsState().computeGids(userIds);

                // Avoid any application that has a space in its path.

                if (dataPath.indexOf(" ") >= 0)

                if (dataPath.indexOf(' ') >= 0)

                    continue;

                // we store on each line the following information for now:

                sb.setLength(0);

                sb.append(ai.packageName);

                sb.append(" ");

                sb.append((int)ai.uid);

                sb.append(ai.uid);

                sb.append(isDebug ? " 1 " : " 0 ");

                sb.append(dataPath);

                sb.append(" ");

                    sb.append("none");

                }

                sb.append("\n");

                str.write(sb.toString().getBytes());

                writer.append(sb);

            }

            str.flush();

            writer.flush();

            FileUtils.sync(fstr);

            str.close();

            writer.close();

            journal.commit();

        } catch (Exception e) {

            Slog.wtf(TAG, "Failed to write packages.list", e);

            IoUtils.closeQuietly(str);

            IoUtils.closeQuietly(writer);

            journal.rollback();

        }

    }