Examples of org.apache.jackrabbit.oak.commons.json.JsopWriter

Package org.apache.jackrabbit.oak.commons.json

Examples of org.apache.jackrabbit.oak.commons.json.JsopWriter

org.apache.jackrabbit.oak.commons.json.JsopWriter
A builder for Json and Json diff strings. It knows when a comma is needed. A comma is appended before '{', '[', a value, or a key; but only if the last appended token was '}', ']', or a value. There is no limit to the number of nesting levels.

            c.children.addAll(set);
            nodeChildrenCache.put(key, c);
        } else if (!isDelete) {
            // update diff cache for modified nodes
            PathRev key = diffCacheKey(path, before, rev);
            JsopWriter w = new JsopStream();
            for (String p : added) {
                w.tag('+').key(p).object().endObject().newline();
            }
            for (String p : removed) {
                w.tag('-').value(p).newline();
            }
            for (String p : changed) {
                w.tag('^').key(p).object().endObject().newline();
            }
            diffCache.put(key, new StringValue(w.toString()));
        }
        // update docChildrenCache
        if (!added.isEmpty()) {
            CacheValue docChildrenKey = new StringValue(path);
            NodeDocument.Children docChildren = docChildrenCache.getIfPresent(docChildrenKey);

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                    path, fromRev, from != null, toRev, to != null);
            throw new MicroKernelException(msg);
        }
        PathRev key = diffCacheKey(path, fromRev, toRev);
        try {
            JsopWriter writer = new JsopStream();
            diffProperties(from, to, writer);
            return writer.toString() + diffCache.get(key, new Callable<StringValue>() {
                @Override
                public StringValue call() throws Exception {
                    return new StringValue(diffImpl(from, to));
                }
            });

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        }
    }


    private String diffImpl(Node from, Node to)
            throws MicroKernelException {
        JsopWriter w = new JsopStream();
        diffProperties(from, to, w);
        // TODO this does not work well for large child node lists
        // use a document store index instead
        int max = MANY_CHILDREN_THRESHOLD;
        Node.Children fromChildren, toChildren;
        fromChildren = getChildren(from, null, max);
        toChildren = getChildren(to, null, max);
        if (!fromChildren.hasMore && !toChildren.hasMore) {
            diffFewChildren(w, fromChildren, from.getLastRevision(),
                    toChildren, to.getLastRevision());
        } else {
            if (FAST_DIFF) {
                diffManyChildren(w, from.getPath(),
                        from.getLastRevision(), to.getLastRevision());
            } else {
                max = Integer.MAX_VALUE;
                fromChildren = getChildren(from, null, max);
                toChildren = getChildren(to, null, max);
                diffFewChildren(w, fromChildren, from.getLastRevision(),
                        toChildren, to.getLastRevision());
            }
        }
        return w.toString();
    }

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            c.children.addAll(set);
            nodeChildrenCache.put(key, c);
        }


        // update diff cache
        JsopWriter w = new JsopStream();
        for (String p : added) {
            w.tag('+').key(PathUtils.getName(p)).object().endObject().newline();
        }
        for (String p : removed) {
            w.tag('-').value(PathUtils.getName(p)).newline();
        }
        for (String p : changed) {
            w.tag('^').key(PathUtils.getName(p)).object().endObject().newline();
        }
        cacheEntry.append(path, w.toString());


        // update docChildrenCache
        if (!added.isEmpty()) {
            CacheValue docChildrenKey = new StringValue(path);
            NodeDocument.Children docChildren = docChildrenCache.getIfPresent(docChildrenKey);

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        String compactDiff = diffCache.getChanges(fromRev, toRev, path);
        if (compactDiff == null) {
            // calculate the diff
            compactDiff = diffImpl(from, to);
        }
        JsopWriter writer = new JsopStream();
        diffProperties(from, to, writer);
        JsopTokenizer t = new JsopTokenizer(compactDiff);
        int r;
        do {
            r = t.read();
            switch (r) {
                case '+':
                case '^': {
                    String name = t.readString();
                    t.read(':');
                    t.read('{');
                    t.read('}');
                    writer.tag((char) r).key(PathUtils.concat(path, name));
                    writer.object().endObject().newline();
                    break;
                }
                case '-': {
                    String name = t.readString();
                    writer.tag('-').value(PathUtils.concat(path, name));
                    writer.newline();
                }
            }
        } while (r != JsopReader.END);
        return writer.toString();
    }

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        }
    }


    private String diffImpl(DocumentNodeState from, DocumentNodeState to)
            throws MicroKernelException {
        JsopWriter w = new JsopStream();
        // TODO this does not work well for large child node lists
        // use a document store index instead
        int max = MANY_CHILDREN_THRESHOLD;
        DocumentNodeState.Children fromChildren, toChildren;
        fromChildren = getChildren(from, null, max);
        toChildren = getChildren(to, null, max);
        if (!fromChildren.hasMore && !toChildren.hasMore) {
            diffFewChildren(w, from.getPath(), fromChildren,
                    from.getLastRevision(), toChildren, to.getLastRevision());
        } else {
            if (FAST_DIFF) {
                diffManyChildren(w, from.getPath(),
                        from.getLastRevision(), to.getLastRevision());
            } else {
                max = Integer.MAX_VALUE;
                fromChildren = getChildren(from, null, max);
                toChildren = getChildren(to, null, max);
                diffFewChildren(w, from.getPath(), fromChildren,
                        from.getLastRevision(), toChildren, to.getLastRevision());
            }
        }
        return w.toString();
    }

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            c.children.addAll(set);
            nodeChildrenCache.put(key, c);
        }


        // update diff cache
        JsopWriter w = new JsopStream();
        for (String p : added) {
            w.tag('+').key(PathUtils.getName(p)).object().endObject().newline();
        }
        for (String p : removed) {
            w.tag('-').value(PathUtils.getName(p)).newline();
        }
        for (String p : changed) {
            w.tag('^').key(PathUtils.getName(p)).object().endObject().newline();
        }
        cacheEntry.append(path, w.toString());


        // update docChildrenCache
        if (!added.isEmpty()) {
            CacheValue docChildrenKey = new StringValue(path);
            NodeDocument.Children docChildren = docChildrenCache.getIfPresent(docChildrenKey);

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        String compactDiff = diffCache.getChanges(fromRev, toRev, path);
        if (compactDiff == null) {
            // calculate the diff
            compactDiff = diffImpl(from, to);
        }
        JsopWriter writer = new JsopStream();
        diffProperties(from, to, writer);
        JsopTokenizer t = new JsopTokenizer(compactDiff);
        int r;
        do {
            r = t.read();
            switch (r) {
                case '+':
                case '^': {
                    String name = t.readString();
                    t.read(':');
                    t.read('{');
                    t.read('}');
                    writer.tag((char) r).key(PathUtils.concat(path, name));
                    writer.object().endObject().newline();
                    break;
                }
                case '-': {
                    String name = t.readString();
                    writer.tag('-').value(PathUtils.concat(path, name));
                    writer.newline();
                }
            }
        } while (r != JsopReader.END);
        return writer.toString();
    }

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        }
    }


    private String diffImpl(DocumentNodeState from, DocumentNodeState to)
            throws MicroKernelException {
        JsopWriter w = new JsopStream();
        // TODO this does not work well for large child node lists
        // use a document store index instead
        int max = MANY_CHILDREN_THRESHOLD;
        DocumentNodeState.Children fromChildren, toChildren;
        fromChildren = getChildren(from, null, max);
        toChildren = getChildren(to, null, max);
        if (!fromChildren.hasMore && !toChildren.hasMore) {
            diffFewChildren(w, from.getPath(), fromChildren,
                    from.getLastRevision(), toChildren, to.getLastRevision());
        } else {
            if (FAST_DIFF) {
                diffManyChildren(w, from.getPath(),
                        from.getLastRevision(), to.getLastRevision());
            } else {
                max = Integer.MAX_VALUE;
                fromChildren = getChildren(from, null, max);
                toChildren = getChildren(to, null, max);
                diffFewChildren(w, from.getPath(), fromChildren,
                        from.getLastRevision(), toChildren, to.getLastRevision());
            }
        }
        return w.toString();
    }

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            c.children.addAll(set);
            nodeChildrenCache.put(key, c);
        }


        // update diff cache
        JsopWriter w = new JsopStream();
        for (String p : added) {
            w.tag('+').key(PathUtils.getName(p)).object().endObject().newline();
        }
        for (String p : removed) {
            w.tag('-').value(PathUtils.getName(p)).newline();
        }
        for (String p : changed) {
            w.tag('^').key(PathUtils.getName(p)).object().endObject().newline();
        }
        cacheEntry.append(path, w.toString());


        // update docChildrenCache
        if (!added.isEmpty()) {
            CacheValue docChildrenKey = new StringValue(path);
            NodeDocument.Children docChildren = docChildrenCache.getIfPresent(docChildrenKey);

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Related Classes of org.apache.jackrabbit.oak.commons.json.JsopWriter

org.apache.jackrabbit.oak.plugins.document.DocumentNodeState

org.apache.jackrabbit.oak.plugins.document.DocumentNodeState$Children

org.apache.jackrabbit.oak.plugins.document.DocumentNodeStore

org.apache.jackrabbit.oak.plugins.document.MongoDiffCache$Diff

org.apache.jackrabbit.oak.plugins.document.NodeDocument

org.apache.jackrabbit.oak.plugins.document.NodeDocument$Children

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