mirror of https://github.com/tasks/tasks
Refactored to create a new gtasks task list updater class for handling task list ops
Tim Su
15 years ago
parent
248791d378
commit
44920567b0
@ -0,0 +1,142 @@
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package com.todoroo.astrid.gtasks;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.Stack;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicLong;
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import android.text.TextUtils;
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import com.todoroo.andlib.data.TodorooCursor;
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import com.todoroo.andlib.service.Autowired;
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import com.todoroo.andlib.service.DependencyInjectionService;
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import com.todoroo.astrid.api.Filter;
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import com.todoroo.astrid.core.PluginServices;
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import com.todoroo.astrid.data.Metadata;
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import com.todoroo.astrid.data.StoreObject;
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import com.todoroo.astrid.data.Task;
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public class GtasksTaskListUpdater {
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@Autowired private GtasksListService gtasksListService;
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@Autowired private GtasksMetadataService gtasksMetadataService;
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private final HashMap<Long, Long> parents = new HashMap<Long, Long>();
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private final HashMap<Long, Long> siblings = new HashMap<Long, Long>();
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private final HashMap<Long, String> localToRemoteIdMap =
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new HashMap<Long, String>();
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public GtasksTaskListUpdater() {
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DependencyInjectionService.getInstance().inject(this);
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}
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/**
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* Update order and parent fields for all tasks in the given list
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* @param listId
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*/
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public void updateMetadataForList(String listId) {
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StoreObject list = gtasksListService.getList(listId);
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if(list == GtasksListService.LIST_NOT_FOUND_OBJECT)
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return;
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final ArrayList<Long> ids = new ArrayList<Long>();
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final Stack<Long> taskHierarchyStack = new Stack<Long>();
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final AtomicInteger order = new AtomicInteger(0);
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final AtomicInteger previousIndent = new AtomicInteger(-1);
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iterateThroughList(list, new ListIterator() {
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@Override
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public void processTask(long taskId) {
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ids.add(taskId);
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Metadata metadata = gtasksMetadataService.getTaskMetadata(taskId);
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if(metadata == null)
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return;
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metadata.setValue(GtasksMetadata.ORDER, order.getAndAdd(1));
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int indent = metadata.getValue(GtasksMetadata.INDENT);
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for(int i = indent; i <= previousIndent.get(); i++) {
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if(!taskHierarchyStack.isEmpty())
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taskHierarchyStack.pop();
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}
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if(indent > 0) {
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if(taskHierarchyStack.isEmpty()) {
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metadata.setValue(GtasksMetadata.PARENT_TASK, 0L);
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metadata.setValue(GtasksMetadata.INDENT, 0);
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} else
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metadata.setValue(GtasksMetadata.PARENT_TASK, taskHierarchyStack.peek());
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} else {
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metadata.setValue(GtasksMetadata.PARENT_TASK, 0L);
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}
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PluginServices.getMetadataService().save(metadata);
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taskHierarchyStack.push(taskId);
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previousIndent.set(indent);
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}
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});
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PluginServices.getTaskService().clearDetails(Task.ID.in(ids));
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}
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/**
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* Create a local tree of tasks to expedite sibling and parent lookups
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*/
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public void createParentSiblingMaps() {
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for(StoreObject list : gtasksListService.getLists()) {
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final AtomicLong previousTask = new AtomicLong(-1L);
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final AtomicInteger previousIndent = new AtomicInteger(-1);
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iterateThroughList(list, new ListIterator() {
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@Override
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public void processTask(long taskId) {
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Metadata metadata = gtasksMetadataService.getTaskMetadata(taskId);
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if(metadata == null)
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return;
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int indent = metadata.getValue(GtasksMetadata.INDENT);
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final long parent, sibling;
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if(indent > previousIndent.get()) {
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parent = previousTask.get();
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sibling = -1L;
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} else if(indent == previousIndent.get()) {
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sibling = previousTask.get();
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parent = parents.get(sibling);
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} else {
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sibling = parents.get(previousTask.get());
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parent = parents.get(sibling);
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}
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parents.put(taskId, parent);
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siblings.put(taskId, sibling);
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previousTask.set(taskId);
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previousIndent.set(indent);
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if(!TextUtils.isEmpty(metadata.getValue(GtasksMetadata.ID)))
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localToRemoteIdMap.put(taskId, metadata.getValue(GtasksMetadata.ID));
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}
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});
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}
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}
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private interface ListIterator {
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public void processTask(long taskId);
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}
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private void iterateThroughList(StoreObject list, ListIterator iterator) {
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Filter filter = GtasksFilterExposer.filterFromList(list);
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TodorooCursor<Task> cursor = PluginServices.getTaskService().fetchFiltered(filter.sqlQuery, null, Task.ID);
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try {
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for(cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
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long taskId = cursor.getLong(0);
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iterator.processTask(taskId);
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}
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} finally {
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cursor.close();
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}
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}
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}
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