Examples with ElementTreeReader org.eclipse.core.internal.watson.ElementTreeReader used on opensource projects

Example 1 with ElementTreeReader

use of org.eclipse.core.internal.watson.ElementTreeReader in project polymap4-core by Polymap4.

the class WorkspaceTreeReader_1 method readTrees.

/**
 * Read trees from disk and link them to the workspace tree.
 */
protected ElementTree[] readTrees(IPath root, DataInputStream input, IProgressMonitor monitor) throws IOException {
    monitor = Policy.monitorFor(monitor);
    try {
        String message = Messages.resources_reading;
        monitor.beginTask(message, 4);
        ElementTreeReader treeReader = new ElementTreeReader(workspace.getSaveManager());
        ElementTree[] trees = treeReader.readDeltaChain(input);
        monitor.worked(3);
        if (root.isRoot()) {
            // Don't need to link because we're reading the whole workspace.
            // The last tree in the chain is the complete tree.
            ElementTree newTree = trees[trees.length - 1];
            newTree.setTreeData(workspace.tree.getTreeData());
            workspace.tree = newTree;
        } else {
            // splice the restored tree into the current set of trees
            workspace.linkTrees(root, trees);
        }
        monitor.worked(1);
        return trees;
    } finally {
        monitor.done();
    }
}

Example 2 with ElementTreeReader

use of org.eclipse.core.internal.watson.ElementTreeReader in project polymap4-core by Polymap4.

the class WorkspaceTreeReader_1 method readSnapshotTree.

public ElementTree readSnapshotTree(DataInputStream input, ElementTree complete, IProgressMonitor monitor) throws CoreException {
    monitor = Policy.monitorFor(monitor);
    String message;
    try {
        message = Messages.resources_readingSnap;
        monitor.beginTask(message, Policy.totalWork);
        ElementTreeReader reader = new ElementTreeReader(workspace.getSaveManager());
        while (input.available() > 0) {
            readWorkspaceFields(input, Policy.subMonitorFor(monitor, Policy.totalWork / 2));
            complete = reader.readDelta(complete, input);
            try {
                // make sure each snapshot is read by the correct reader
                int version = input.readInt();
                if (version != getVersion())
                    return WorkspaceTreeReader.getReader(workspace, version).readSnapshotTree(input, complete, monitor);
            } catch (EOFException e) {
                break;
            }
        }
        return complete;
    } catch (IOException e) {
        message = Messages.resources_readWorkspaceSnap;
        throw new ResourceException(IResourceStatus.FAILED_READ_METADATA, null, message, e);
    } finally {
        monitor.done();
    }
}