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Issue #851 change date formatters to use ThreadLocal instead of synchronized blocks.

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Change-Id: I1d3818cf90d21d3cc725b9a83e55eb5068b7aa62

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This commit is contained in:
Ron Anderson 2012-07-31 08:36:27 -05:00
parent 5a58fc89bf
commit 701d77f90a
3 changed files with 36 additions and 50 deletions
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19
cave/com.raytheon.viz.gfe/src/com/raytheon/viz/gfe/core/internal/AbstractParmManager.java
View file

@ -106,12 +106,17 @@ public abstract class AbstractParmManager implements IParmManager {
private static final int NOTIFICATION_THREADS = 4;
private static final SimpleDateFormat dateFormat = new SimpleDateFormat(
DatabaseID.MODEL_TIME_FORMAT);
private static final ThreadLocal<SimpleDateFormat> dateFormat = new ThreadLocal<SimpleDateFormat>() {
static {
dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
}
@Override
protected SimpleDateFormat initialValue() {
SimpleDateFormat df = new SimpleDateFormat(
DatabaseID.MODEL_TIME_FORMAT);
df.setTimeZone(TimeZone.getTimeZone("GMT"));
return df;
}
};
protected class ParmIDVis {
private ParmID pid;
@ -478,9 +483,7 @@ public abstract class AbstractParmManager implements IParmManager {
if (string.length() - pos == 14) {
try {
dtg = string.substring(pos + 1);
synchronized (dateFormat) {
dateFormat.parse(dtg);
}
dateFormat.get().parse(dtg);
} catch (ParseException e) {
return null;
}

19
edexOsgi/com.raytheon.edex.plugin.gfe/src/com/raytheon/edex/plugin/gfe/smartinit/SmartInitRecordPK.java
View file

@ -59,12 +59,17 @@ public class SmartInitRecordPK implements ISerializableObject, Serializable,
private static final long serialVersionUID = 1L;
private static final SimpleDateFormat dateFormat = new SimpleDateFormat(
DatabaseID.MODEL_TIME_FORMAT);
private static final ThreadLocal<SimpleDateFormat> dateFormat = new ThreadLocal<SimpleDateFormat>() {
static {
dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
}
@Override
protected SimpleDateFormat initialValue() {
SimpleDateFormat df = new SimpleDateFormat(
DatabaseID.MODEL_TIME_FORMAT);
df.setTimeZone(TimeZone.getTimeZone("GMT"));
return df;
}
};
public enum State {
PENDING, RUNNING
@ -189,9 +194,7 @@ public class SmartInitRecordPK implements ISerializableObject, Serializable,
tmp.append(initName);
tmp.append(" ValidTime: ");
if (validTime != null) {
synchronized (dateFormat) {
tmp.append(dateFormat.format(validTime));
}
tmp.append(dateFormat.get().format(validTime));
} else {
tmp.append("null");
}

48
edexOsgi/com.raytheon.uf.common.dataplugin.gfe/src/com/raytheon/uf/common/dataplugin/gfe/db/objects/DatabaseID.java
View file

@ -74,12 +74,17 @@ public class DatabaseID implements Serializable, Comparable<DatabaseID>,
public static final String MODEL_TIME_FORMAT = "yyyyMMdd_HHmm";
private static final SimpleDateFormat dateFormat = new SimpleDateFormat(
MODEL_TIME_FORMAT);
private static final ThreadLocal<SimpleDateFormat> dateFormat = new ThreadLocal<SimpleDateFormat>() {
static {
dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
}
@Override
protected SimpleDateFormat initialValue() {
SimpleDateFormat df = new SimpleDateFormat(
DatabaseID.MODEL_TIME_FORMAT);
df.setTimeZone(TimeZone.getTimeZone("GMT"));
return df;
}
};
/** Denotes what type of database */
public enum DataType {
@ -150,14 +155,8 @@ public class DatabaseID implements Serializable, Comparable<DatabaseID>,
*/
public DatabaseID(String siteId, DataType format, String dbType,
String modelName, Date modelTime) {
this.siteId = siteId;
this.format = format;
this.dbType = dbType;
this.modelName = modelName;
synchronized (dateFormat) {
this.modelTime = dateFormat.format(modelTime);
}
encodeIdentifier();
this(siteId, format, dbType, modelName, dateFormat.get().format(
modelTime));
}
/**
@ -233,21 +232,6 @@ public class DatabaseID implements Serializable, Comparable<DatabaseID>,
return retVal;
}
/**
* Returns the filename for the database associated with this database ID
*
* @return
*/
public String dbFilename() {
// TODO: Is this method necessary?
return "";
}
public String dbPathName() {
// TODO: Is this method necessary?
return "";
}
/**
* Returns true if this is a valid database identifier
*
@ -357,9 +341,7 @@ public class DatabaseID implements Serializable, Comparable<DatabaseID>,
return false;
}
try {
synchronized (dateFormat) {
dateFormat.parse(dtgString);
}
dateFormat.get().parse(dtgString);
modelTime = dtgString;
} catch (ParseException e) {
return false;
@ -497,9 +479,7 @@ public class DatabaseID implements Serializable, Comparable<DatabaseID>,
Date date = null;
if (modelTime != null && !NO_MODEL_TIME.equalsIgnoreCase(modelTime)) {
try {
synchronized (dateFormat) {
date = dateFormat.parse(this.modelTime);
}
date = dateFormat.get().parse(this.modelTime);
} catch (ParseException e) {
}
}