Subversion Repositories DevTools

package com.erggroup.buildtool.ripple;

import java.io.File;

import java.sql.SQLException;

import java.util.Iterator;

import java.util.Vector;

import org.apache.log4j.Logger;

import com.erggroup.buildtool.smtp.Smtpsend;

public class Package

{

  /**name of package, must not contain spaces

   * @attribute

   */

  String mName = new String();

  /**package scope

   * @attribute

   */

  String mExtension = new String();

  /**instance identifier

   * @attribute

   */

  String mVersion = new String();

  /** Version string as specified by the user. Used with a ripple

   *  type of 'F'

   */

  String mFixedVersion = new String();

  /**unique identifier

   * for daemon builds = mName + mExtension

   * for escrow builds = mName + mVersion + mExtension

   * @attribute

   */

  String mAlias = new String();

  /**Version Control System Tag

   * @attribute

   */

  String mVcsTag = new String();

  /**build standards

   * @attribute

   */

  Vector<BuildStandard> mBuildStandardCollection = new Vector<BuildStandard>();

  /**GBE_MACHTYPE used to build generic packages for this baseline

   * only has meaning in the daemon build, not the escrow build

   * accessed by BuildStandard::getPlatform, getBuildStandard

   * @attribute

   */

  public static final String mGenericMachtype = System.getenv("GBE_MACHTYPE");

  /**build dependencies by package alias

   * @attribute

   */

  Vector<String> mDependencyCollection = new Vector<String>();

  /**primary package version key pv_id in database

   * @attribute

   */

  int mId;

  /**indication of the nature of change

   * @attribute

   */

  Package.VersionNumberingStandard mChangeType = new VersionNumberingStandard();

  /**determines what field is rippled on a package version whose dependencies have changed

   * @attribute

   */

  Package.VersionNumberingStandard mRippleField = new VersionNumberingStandard();

  /**interested owners

   * @attribute

   */

  private Vector<String> mBuildFailureEmailCollection = new Vector<String>();

  /**when true will trigger unit tests as part of the package build phase in daemon mode

   * @attribute

   */

  boolean mHasAutomatedUnitTests = false;

  /**when true, do not ripple this package through packages which are dependent upon it in daemon mode

   * @attribute

   */

  boolean mAdvisoryRipple = false;

  /**determines the build file the package is built in, or not

   *  1 buildfile 1 etc

   *  0 not yet processed (initial value)

   * -1 not reproducible

   * -2 not reproducible on the build platforms configured for this release

   * -3 do not ripple

   * -4 directly dependent on package versions not in the baseline

   * -5 indirectly dependent on package versions which are not reproducible

   *    because of -1, -2 (escrow), -3 (daemon), -4, -6

   * -6 circular dependency

   * @attribute

   */

  int mBuildFile = 0;

  /**build dependencies by package

   * @attribute

   */

  Vector<Package> mPackageDependencyCollection = new Vector<Package>();

  /**used for escrow build purposes

   * set true when a package has been processed

   * @attribute

   */

  boolean mProcessed = false;

  /**set true for WIP package versions

   * only used in daemon mode

   * @attribute

   */

  boolean mDirectlyPlanned = false;

  /**set true when it is determined to be ripple built

   * @attribute

   */

  boolean mIndirectlyPlanned = false;

  /**non zero instruction number when it is determined to be ripple built by force

   * @attribute

   */

  int mForcedRippleInstruction = 0;

  /**non zero instruction number when it is determined to be test built

   * @attribute

   */

  int mTestBuildInstruction = 0;

  /**test build email destination

   * @attribute

   */

  String mTestBuildEmail;

  /**Version Control System Tag

   * @attribute

   */

  String mTestBuildVcsTag = new String();

  /**build standards

   * @attribute

   */

  Vector<BuildStandard> mTestBuildStandardCollection = new Vector<BuildStandard>();

  /**build dependencies by package alias

   * @attribute

   */

  Vector<String> mTestBuildDependencyCollection = new Vector<String>();

  /**build dependencies by pv_id (-1 or not used for planned dependencies)

   * @attribute

   */

  Vector<Integer> mDependencyIDCollection = new Vector<Integer>();

  /**unique pkg_id in the database

   * used for querying package version existence in the database in daemon mode

   * @attribute

   */

  int mPid;

  /**maximum major number supported for determining ripple number

   * @attribute

   */

  int mMajorLimit;

  /**maximum minor number supported for determining ripple number

   * @attribute

   */

  int mMinorLimit;

  /**maximum patch number supported for determining ripple number

   * @attribute

   */

  int mPatchLimit;

  /**maximum build number number supported for determining ripple number

   * @attribute

   */

  int mBuildLimit;

  /**Logger

   * @attribute

   */

  private static final Logger mLogger = Logger.getLogger(Package.class);

  /**dpkg archive location

   * @attribute

   */

  public static final String mGbeDpkg = System.getenv("GBE_DPKG");

  /**Exception message used upon detection an archive does not exist

   * Seems this is a rare but transient and recoverable scenario

   * @attribute

   */

  public static final String mRecoverable = "dpkg_archive does not exist, recovery will be attempted";

  /**true if the package exists in the package archive (dpkg_archive)

   * @attribute

   */

  private boolean mArchivalExistence = true;

  /**when true will trigger source control interaction eg labelling

   * @attribute

   */

  public boolean mRequiresSourceControlInteraction = true;

  /**when true has been checked for circular dependency

   * @attribute

   */

  boolean mCheckedCircularDependency = false;

  /**when true has circular dependency

   * @attribute

   */

  boolean mHasCircularDependency = false;

  /**constructor

   */

  Package(int pv_id, String pkg_name, String v_ext, String alias, 

          String pkg_vcs_tag, char change_type, char ripple_field, String pkg_version)

  {

    mLogger.debug("Package 1: pv_id " + pv_id + " pkg_name " + pkg_name + " v_ext " + v_ext + " alias " + alias + " pkg_vcs_tag " + pkg_vcs_tag + " change_type " + change_type);

    mId = pv_id;

    mName = pkg_name;

    mVersion = "0.0.0000";

    mExtension = v_ext;

    mAlias = alias;

    mVcsTag = pkg_vcs_tag;

    // Must not have any extension

    mFixedVersion = pkg_version;

    mFixedVersion = mFixedVersion.substring(0, mFixedVersion.length() - mExtension.length());

    if (change_type == 'M')

    {

      // a ripple_field of 'L' indicates this package has limited version numbering

      mChangeType.setMajor(ripple_field == 'L' ? true : false);

    }

    else if (change_type == 'N')

    {

      mChangeType.setMinor(ripple_field == 'L' ? true : false);

    }

    else if (change_type == 'P')

    {

      mChangeType.setPatch(ripple_field == 'L' ? true : false);

    }

    else if (change_type == 'F')

    {

      mChangeType.setFixed();

    }

    else

    {

        mChangeType.setUnknown();

    }

  }

  /**constructor

   */

  Package(int pv_id, String pkg_name, String pkg_version, String v_ext, 

          String alias, String pkg_vcs_tag, char ripple_field)

  {

    mLogger.debug("Package 2: pv_id " + pv_id + " pkg_name " + pkg_name + " pkg_version " + pkg_version + " v_ext " + v_ext + " alias " + alias + " pkg_vcs_tag " + pkg_vcs_tag + " ripple_field " + ripple_field);

    mId = pv_id;

    mName = pkg_name;

    mVersion = pkg_version;

    int endindex = mVersion.length() - v_ext.length();

    if ( endindex > 0 )

    {

      mVersion = mVersion.substring(0, endindex);

    }

    mExtension = v_ext;

    mAlias = alias;

    mVcsTag = pkg_vcs_tag;

    // setBuild is the default

    if (ripple_field == 'M')

    {

      mRippleField.setMajor();

    }

    else if (ripple_field == 'm')

    {

      mRippleField.setMinor();

    }

    else if (ripple_field == 'p')

    {

      mRippleField.setPatch();

    }

    else if (ripple_field == 'L')

    {

      mRippleField.setLimit();

    }

  }

  /**constructor

   */

  Package()

  {

    mLogger.debug("Package 3");

    mId = 0;

    mName = "null";

    mExtension = "null";

    mAlias = "null";

    mVcsTag = "null";

  }

  /**constructor for test build purposes

   */

  Package(String pkg_name, String v_ext, String alias, 

          String pkg_vcs_tag, int testBuildInstruction, String email)

  {

    mLogger.debug("Package 4: pkg_name " + pkg_name + " v_ext " + v_ext + " alias " + alias + " pkg_vcs_tag " + pkg_vcs_tag );

    // don't need pv_id

    mId = -1;

    mName = pkg_name;

    // avoid interaction with real versions

    mVersion = "0.0.0000";

    mExtension = v_ext;

    mAlias = alias;

    mTestBuildInstruction = testBuildInstruction;

    mTestBuildEmail = email;

    mTestBuildVcsTag = pkg_vcs_tag;

  }

/**constructor for unit test purposes

  */

  public Package(ReleaseManager rm, String version, int majorLimit, int minorLimit, int patchLimit, int buildNumberLimit)

  {

    mId = -1;

    mRippleField.setLimit();

    mVersion = version;

    mMajorLimit = majorLimit;

    mMinorLimit = minorLimit;

    mPatchLimit = patchLimit;

    mBuildLimit = buildNumberLimit;

    if ( version.endsWith(".cots") )

    {

        mExtension = ".cots";

        mVersion = version.substring( 0, version.length() - 5 );

        mChangeType.setMajor(false);

        mChangeType.setMinor(false);

        mChangeType.setPatch(true);

        mRippleField.setBuild();

    }

    try

    {

      mId = applyPV( rm, 0 );

    }

    catch(Exception e)

    {

    }

  }

  /**accessor for unit test purposes

   */

  public int getId()

  {

    return mId;

  }

  /**accessor for unit test purposes

   */

  public String getVersion()

  {

    return mVersion;

  }

  /**returns true if mBuildStandardCollection is not empty

   */

  boolean isReproducible()

  {

    mLogger.debug("isReproducible on Package " + mName);

    boolean retVal = false;

    if ( mBuildStandardCollection.size() > 0 )

    {

      retVal = true;

    }

    mLogger.info("isReproducible returned " + retVal);

    return retVal;

  }

  /**returns true if at least one of its BuildStandards has mWin32 or mGeneric true

   */

  boolean isWin32Built()

  {

    mLogger.debug("isWin32Built on Package " + mName);

    boolean retVal = false;

    for (Iterator<BuildStandard> it = mBuildStandardCollection.iterator(); it.hasNext(); )

    {

      BuildStandard buildStandard = it.next();

      if (buildStandard.getWin32() || buildStandard.getGeneric())

      {

        retVal = true;

        break;

      }

    }

    mLogger.info("isWin32Built returned " + retVal);

    return retVal;

  }

  /**returns true if at least one of its BuildStandards has mSolaris or mGeneric true

   */

  boolean isSolarisBuilt()

  {

    mLogger.debug("isSolarisBuilt on Package " + mName);

    boolean retVal = false;

    for (Iterator<BuildStandard> it = mBuildStandardCollection.iterator(); it.hasNext(); )

    {

      BuildStandard buildStandard = it.next();

      if (buildStandard.getSolaris() || buildStandard.getGeneric())

      {

        retVal = true;

        break;

      }

    }

    mLogger.info("isSolarisBuilt returned " + retVal);

    return retVal;

  }

  /**returns true if at least one of its BuildStandards has mLinux or mGeneric true

   */

  boolean isLinuxBuilt()

  {

    mLogger.debug("isLinuxBuilt on Package " + mName);

    boolean retVal = false;

    for (Iterator<BuildStandard> it = mBuildStandardCollection.iterator(); it.hasNext(); )

    {

      BuildStandard buildStandard = it.next();

      if (buildStandard.getLinux() || buildStandard.getGeneric())

      {

        retVal = true;

        break;

      }

    }

    mLogger.info("isLinuxBuilt returned " + retVal);

    return retVal;

  }

  /**returns true if at least one of its BuildStandards has mGeneric true

   */

  boolean isGeneric()

  {

    mLogger.debug("isGeneric on Package " + mName);

    boolean retVal = false;

    for (Iterator<BuildStandard> it = mBuildStandardCollection.iterator(); it.hasNext(); )

    {

      BuildStandard buildStandard = it.next();

      if (buildStandard.getGeneric())

      {

        retVal = true;

        break;

      }

    }

    mLogger.info("isGeneric returned " + retVal);

    return retVal;

  }

  /**applies the required version number change

   * returns 0 on success

   *         1 on cannot work with non standard versioning

   *         2 on ripple field limitations prevent a ripple build

   *         3 on Invalid Change Type

   */

  int applyPV(ReleaseManager releaseManager, int rtag_id) throws Exception

  {

    mLogger.debug("applyPV on Package " + mName);

    //

    // Four scenarios, only applyPV for 3 of them

    //                                  mDirectlyPlanned    mIndirectlyPlanned  mArchivalExistence  mForcedRipple   Action

    // WIP/test build exists:           true                true                don't care          don't care     applyPV

    // Package version is out of date:  false               true                true                don't care     applyPV

    // Forced ripple:                   false               true                don't care          > 0            applyPV

    // Package version does not exist:  false               true                false               = 0            do not applyPV

    //

    if ( !mDirectlyPlanned && mIndirectlyPlanned && !mArchivalExistence && mForcedRippleInstruction == 0 )

    {

      // the package has an mIndirectlyPlanned flag set true in daemon mode because the package does not exist in an archive

      // do not apply a different package version

      mLogger.info("applyPV !mDirectlyPlanned && mIndirectlyPlanned && !mArchivalExistence && zero mForcedRippleInstruction on Package " + mName);

      releaseManager.claimVersion(mPid, mVersion + mExtension, rtag_id);

      mLogger.info("applyPv returned 0");

      return 0;

    }

    // override - no longer doing a rebuild - version number change from this point on

    if ( mTestBuildInstruction == 0 )

    {

      mRequiresSourceControlInteraction = true;

    }

    //

    //  Detect invalid change type

    //  Flagged when package instance is created

    //

    if (mChangeType.mUnknown)

    {

        mLogger.info("Package Vesrion specified on Package " + mName + "New Version:" + mVersion);

        mLogger.info("applyPv returned 3");

        return 3;

    }

    // If we are not calculating the new package version because the user has fixed the version

    // of the package. We are given the new package version.

    if (mChangeType.mFixed)

    {

        // mVersion is already setup

        mVersion = mFixedVersion;

        mLogger.info("Package Vesrion specified on Package " + mName + "New Version:" + mVersion);

        releaseManager.claimVersion(mPid, mVersion + mExtension, rtag_id);

        mLogger.info("applyPv returned 0");

        return 0;

    }

    // We need to calculate the new version number

    //

    MutableInt major = new MutableInt();

    major.value = 0;

    MutableInt minor = new MutableInt();

    minor.value = 0;

    MutableInt patch = new MutableInt();

    patch.value = 1000;

    String field[] = mVersion.split("\\D");

    String nonStandardCotsVersion = "";

    if ( field.length == 3 )

    {

      major.value = Integer.parseInt(field[0]);

      minor.value = Integer.parseInt(field[1]);

      patch.value = Integer.parseInt(field[2]);

    }

    else

    {

      //

      //    Can ripple a .cots package under very controlled conditions

      //    Its ends with a .patchBuild field

      //    Package is marked as ripple via build number

      //    Change type of Major and Minor are not allowed

      //

      if ( !mChangeType.mMajor &&

           !mChangeType.mMinor &&

           mRippleField.mBuild &&

           mExtension.compareTo(".cots") == 0 &&

           field.length > 0 )

      {

        // DEVI 52782

        // allow and work with (ripple build) versions a.b.c.d....xxxx

        // where xxxx.length > 3

        String patchStr = field[field.length - 1];

        int patchLen = patchStr.length();

        // check patchStr is the last (at least 4) digits

        if ( patchLen > 3 && mVersion.substring( mVersion.length() - patchLen, mVersion.length() ).compareTo(patchStr) == 0 )

        {

          patch.value = Integer.parseInt(patchStr);

          nonStandardCotsVersion = mVersion.substring(0, mVersion.length() - patchLen );

        }

      }

      if ( nonStandardCotsVersion.length() == 0 )

      {

        // cannot work with non standard versioning

        mLogger.error("applyPV cannot work with non standard versioning");

        mLogger.info("applyPv returned 1");

        return 1;

      }

    }

    if ( nonStandardCotsVersion.length() == 0 &&

         patch.value < 1000 && 

         field[2].substring(0, 1).compareTo("0") != 0 )

    {

      mLogger.info("applyPV accomodate old style mVersion of the form 1.0.1");

      patch.value = patch.value * 1000;

    }

    // mChangeType overrides mRippleField

    do

    {

      if ( mChangeType.mMajor )

      {

        if ( !incrementFieldsAccordingToLimits(4, major, minor, patch) )

        {

          mLogger.info("applyPv returned 2");

          return 2;

        }

      }

      else if ( mChangeType.mMinor )

      {

        if ( !incrementFieldsAccordingToLimits(3, major, minor, patch) )

        {

          mLogger.info("applyPv returned 2");

          return 2;

        }

      }

      else if ( mChangeType.mPatch )

      {

        if ( !incrementFieldsAccordingToLimits(2, major, minor, patch) )

        {

          mLogger.info("applyPv returned 2");

          return 2;

        }

      }

      else

      {

        if ( mRippleField.mMajor )

        {

          major.value++;

          mLogger.info("applyPV mRippleField.mMajor " + major.value);

          minor.value = 0;

          patch.value = 0;

        }

        else if ( mRippleField.mMinor )

        {

          minor.value++;

          mLogger.info("applyPV mRippleField.mMinor " + minor.value);

          patch.value = 0;

        }

        else if ( mRippleField.mPatch )

        {

          do

          {

            patch.value++;

          } while ( ( patch.value / 1000 ) * 1000 != patch.value );

          mLogger.info("applyPV mRippleField.mPatch " + patch.value);

        }

        else if ( mRippleField.mBuild )

        {

          patch.value++;

          mLogger.info("applyPV mRippleField.mBuild " + patch.value);

        }

        else

        {

          if ( !incrementFieldsAccordingToLimits(1, major, minor, patch) )

          {

            mLogger.info("applyPv returned 2");

            return 2;

          }

        }

      }

      if ( nonStandardCotsVersion.length() == 0 )

      {

        mVersion = String.valueOf(major.value) + "." + String.valueOf(minor.value) + ".";

      }

      else

      {

        mVersion = nonStandardCotsVersion;

      }

      if ( patch.value < 10 )

      {

        mVersion += "000";

      }

      else if ( patch.value < 100 )

      {

        mVersion += "00";

      }

      else if ( patch.value < 1000 )

      {

        mVersion += "0";

      }

      mVersion += String.valueOf(patch.value);

    } while ( exists(releaseManager, rtag_id) );

    releaseManager.claimVersion(mPid, mVersion + mExtension, rtag_id);

    mLogger.info("applyPv returned 0");

    return 0;

  }

  /**increments fields according to mRippleField.mLimit if necessary

   * will apply it to the field passed as follows

   * 1 = build

   * 2 = patch

   * 3 = minor

   * other = major

   * returns true on success

   *         false on ripple field limitations prevent a ripple build

   */

  private boolean incrementFieldsAccordingToLimits(int field, MutableInt major, MutableInt minor, MutableInt patch)

  {

    boolean retVal = true;

    if (!mChangeType.mLimit && !mRippleField.mLimit)

    {

      // simple case

      // no need to take field limits into consideration

      switch (field)

      {

      case 1:

        // unreachable

        // the only scenario involving build number manipulation involves the mRippleField.mLimit being set

        retVal = false;

        break;

      case 2:

        do

        {

          patch.value++;

        } while ( ( patch.value / 1000 ) * 1000 != patch.value );

        mLogger.info("incrementFieldsAccordingToLimits patch " + patch.value);

        break;

      case 3:

        minor.value++;

        mLogger.info("incrementFieldsAccordingToLimits minor " + minor.value);

        patch.value = 0;

        break;

      default:

        major.value++;

        mLogger.info("incrementFieldsAccordingToLimits major " + major.value);

        minor.value = 0;

        patch.value = 0;

      }

    }

    else

    {

      // take field limits into consideration

      boolean changeOccurred = false;

      boolean incrementField = true;

      switch (field)

      {

      case 1:

        if ( mBuildLimit != 0 )

        {

          // increment or reset the patch build number

          int buildNumber = patch.value - (patch.value/1000) * 1000;

          if ( buildNumber < mBuildLimit )

          {

            // can increment the patch build number

            patch.value++;

            mLogger.info("incrementFieldsAccordingToLimits mRippleField.mLimit build number " + patch.value);

            changeOccurred = true;

            incrementField = false;

          }

          else

          {

            if ( mPatchLimit == 0 )

            {

              // reset the patch number and patch build number

              patch.value = 0;

            }

          }

        }

        // no break by design

      case 2:

        if ( mPatchLimit != 0 && incrementField )

        {

          // increment or reset the patch number

          if ( ( patch.value / 1000 ) < mPatchLimit )

          {

            do

            {

              patch.value++;

            } while ( ( patch.value / 1000 ) * 1000 != patch.value );

            mLogger.info("incrementFieldsAccordingToLimits mRippleField.mLimit patch " + patch.value);

            changeOccurred = true;

            incrementField = false;

          }

          else

          {

            // reset the patch number and patch build number

            patch.value = 0;

          }

        }

        // no break by design

      case 3:

        if ( mMinorLimit != 0 && incrementField )

        {

          // increment or reset the minor number

          if ( minor.value < mMinorLimit )

          {

            minor.value++;

            patch.value = 0;

            mLogger.info("incrementFieldsAccordingToLimits mRippleField.mLimit minor " + minor.value);

            changeOccurred = true;

            incrementField = false;

          }

          else

          {

            // reset the minor number

            minor.value = 0;

          }

        }

        // no break by design

      default:

        if ( mMajorLimit != 0 && incrementField )

        {

          // increment or reset the major number

          if ( major.value < mMajorLimit )

          {

            // increment the major number

            changeOccurred = true;

            major.value++;

            minor.value = 0;

            patch.value = 0;

            mLogger.info("incrementFieldsAccordingToLimits mRippleField.mLimit major " + major.value);

          }

        }

      }

      if ( !changeOccurred )

      {

        // unable to increment a field due to field limitations

        mLogger.error("incrementFieldsAccordingToLimits ripple field limitations prevent a ripple build");

        mLogger.info("incrementFieldsAccordingToLimits returned false");

        retVal = false;

      }

    }

    return retVal;

  }

  /**returns true if the version exists in the dpkg_archive or release manager database

   * claims the version in the release manager database

   */

  private boolean exists(ReleaseManager releaseManager, int rtag_id) throws Exception

  {

    mLogger.debug("exists 1 on Package " + mName + " version " + mVersion + " extension " + mExtension);

    boolean retVal = false;

    if ( !ReleaseManager.mUseDatabase )

    {

      mLogger.info("exists 1 !releaseManager.mUseDatabase");

    }

    else

    {

      retVal = exists();

      if ( !retVal )

      {

        String pkg_version = new String(mVersion);

        if ( mExtension.length() > 0 )

        {

          pkg_version += mExtension;

        }

        retVal = releaseManager.queryPackageVersions(mPid, pkg_version);

      }

    }

    mLogger.info("exists 1 returned " + retVal);

    return retVal;

  }

  /**returns true if the required package archives (dpkg_archive) exist

   * attempt to recover from their transient loss 

   */

  public static boolean recover()

  {

    mLogger.debug("recover");

    boolean retVal = false;

    String Release = mGbeDpkg;

    if (Release != null )

    {

      File dpkg = new File(mGbeDpkg);

      if ( dpkg.exists() )

      {

        retVal = true;

        mLogger.fatal("recover: dpkg_archive access has been restored");

      }

    }

    mLogger.info("recover returned " + retVal);

    return retVal;

  }

  /**returns true if the version exists in a package archive (dpkg_archive)

   */

  boolean exists()

    throws Exception

  {

    mLogger.debug("exists 2 on Package " + mName);

    boolean retVal = false;

    String Release = mGbeDpkg;

    if (Release == null)

    {

      mLogger.fatal("exists 2 Release == null");

      throw new Exception("exists 2 Release == null");

    }

    File dpkg = new File(mGbeDpkg);

    if ( !dpkg.exists()  )

    {

      mLogger.fatal("exists 2 " + mRecoverable);

      throw new Exception(mRecoverable);

    }

    String fs = System.getProperty( "file.separator" );

    String name = new String(Release);

    name += fs + mName + fs + mVersion + mExtension;

    File release = new File(name);

    if (release.exists())

    {

      mLogger.info("exists 2 release.exists()");

      retVal = true;

    }

    mArchivalExistence = retVal;

    mLogger.info("exists 2 returned " + retVal);

    return retVal;

  }

  /**returns email information

   */

  String emailInfo( String lf )

  {

    String retVal = new String();

    for (Iterator<String> it = mBuildFailureEmailCollection.iterator(); it.hasNext(); )

    {

      String email = it.next();

      retVal +=

      "  <owner email=\"" + email +"\"/>" + lf;

    }

    return retVal;

  }

  /**returns email information

   */

  String emailInfoNonAntTask()

  {

    String retVal = null;

    for (Iterator<String> it = mBuildFailureEmailCollection.iterator(); it.hasNext(); )

    {

      String email = it.next();

      if ( retVal == null )

      {

        retVal = new String();

      }

      else

      {

        retVal += ",";

      }

      retVal += email;

    }

    return retVal;

  }

  /**adds email to mBuildFailureEmailCollection if unique

   */