Examples with MaxSizeMap org.alfresco.util.MaxSizeMap used on opensource projects

Example 1 with MaxSizeMap

use of org.alfresco.util.MaxSizeMap in project alfresco-repository by Alfresco.

the class ScenarioTempDeleteShuffle method createInstance.

@Override
public ScenarioInstance createInstance(final EvaluatorContext ctx, Operation operation) {
    /**
     * This scenario is triggered by a delete of a file matching
     * the pattern
     */
    if (operation instanceof CreateFileOperation) {
        CreateFileOperation c = (CreateFileOperation) operation;
        // check whether file is below .TemporaryItems
        String path = c.getPath();
        // if path contains .TemporaryItems
        Matcher d = tempDirPattern.matcher(path);
        if (d.matches()) {
            logger.debug("pattern matches temp dir folder so this is a new create in a temp dir");
            Matcher m = pattern.matcher(c.getName());
            if (m.matches()) {
                // and how to lock - since we are already have one lock on the scenarios/folder here
                // this is a potential deadlock and synchronization bottleneck
                Map<String, String> createdTempFiles = (Map<String, String>) ctx.getSessionState().get(SCENARIO_KEY);
                if (createdTempFiles == null) {
                    synchronized (ctx.getSessionState()) {
                        logger.debug("created new temp file map and added it to the session state");
                        createdTempFiles = (Map<String, String>) ctx.getSessionState().get(SCENARIO_KEY);
                        if (createdTempFiles == null) {
                            createdTempFiles = Collections.synchronizedMap(new MaxSizeMap<String, String>(5, false));
                            ctx.getSessionState().put(SCENARIO_KEY, createdTempFiles);
                        }
                    }
                }
                createdTempFiles.put(c.getName(), c.getName());
            // TODO - Return a different scenario instance here ???
            // So it can time out and have anti-patterns etc?
            }
        }
    }
    if (operation instanceof MoveFileOperation) {
        MoveFileOperation mf = (MoveFileOperation) operation;
        // check whether file is below .TemporaryItems
        String path = mf.getFromPath();
        // if path contains .TemporaryItems
        Matcher d = tempDirPattern.matcher(path);
        if (d.matches()) {
            logger.debug("pattern matches temp dir folder so this is a new create in a temp dir");
            Matcher m = pattern.matcher(mf.getFrom());
            if (m.matches()) {
                // and how to lock - since we are already have one lock on the scenarios/folder here
                // this is a potential deadlock and synchronization bottleneck
                Map<String, String> createdTempFiles = (Map<String, String>) ctx.getSessionState().get(SCENARIO_KEY);
                if (createdTempFiles == null) {
                    synchronized (ctx.getSessionState()) {
                        logger.debug("created new temp file map and added it to the session state");
                        createdTempFiles = (Map<String, String>) ctx.getSessionState().get(SCENARIO_KEY);
                        if (createdTempFiles == null) {
                            createdTempFiles = Collections.synchronizedMap(new MaxSizeMap<String, String>(5, false));
                            ctx.getSessionState().put(SCENARIO_KEY, createdTempFiles);
                        }
                    }
                }
                createdTempFiles.remove(mf.getFrom());
            // TODO - Return a different scenario instance here ???
            // So it can time out and have anti-patterns etc?
            }
        }
    }
    if (operation instanceof DeleteFileOperation) {
        DeleteFileOperation c = (DeleteFileOperation) operation;
        Matcher m = pattern.matcher(c.getName());
        if (m.matches()) {
            Map<String, String> createdTempFiles = (Map<String, String>) ctx.getSessionState().get(SCENARIO_KEY);
            if (createdTempFiles != null) {
                if (createdTempFiles.containsKey(c.getName())) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("New Scenario Temp Delete Shuffle Instance:" + c.getName());
                    }
                    ScenarioTempDeleteShuffleInstance instance = new ScenarioTempDeleteShuffleInstance();
                    instance.setTimeout(timeout);
                    instance.setRanking(ranking);
                    return instance;
                }
            }
        }
    }
    // No not interested.
    return null;
}