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Posted to commits@ignite.apache.org by iv...@apache.org on 2015/07/16 11:49:05 UTC

incubator-ignite git commit: #ignite-961: add ignite-json module.

Repository: incubator-ignite
Updated Branches:
  refs/heads/ignite-961 8616eebbf -> e5a33c1d6


#ignite-961: add ignite-json module.


Project: http://git-wip-us.apache.org/repos/asf/incubator-ignite/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-ignite/commit/e5a33c1d
Tree: http://git-wip-us.apache.org/repos/asf/incubator-ignite/tree/e5a33c1d
Diff: http://git-wip-us.apache.org/repos/asf/incubator-ignite/diff/e5a33c1d

Branch: refs/heads/ignite-961
Commit: e5a33c1d69c258e2f4cd5f75e8a868e7dc01befe
Parents: 8616eeb
Author: ivasilinets <iv...@gridgain.com>
Authored: Thu Jul 16 12:48:56 2015 +0300
Committer: ivasilinets <iv...@gridgain.com>
Committed: Thu Jul 16 12:48:56 2015 +0300

----------------------------------------------------------------------
 modules/json/pom.xml                            |  88 ++++
 .../org/apache/ignite/JsonArrayBuilderImpl.java | 130 +++++
 .../java/org/apache/ignite/JsonArrayImpl.java   | 131 +++++
 .../org/apache/ignite/JsonGeneratorImpl.java    | 500 +++++++++++++++++++
 .../org/apache/ignite/JsonLocationImpl.java     |  60 +++
 .../java/org/apache/ignite/JsonNumberImpl.java  | 116 +++++
 .../apache/ignite/JsonObjectBuilderImpl.java    | 141 ++++++
 .../java/org/apache/ignite/JsonObjectImpl.java  | 116 +++++
 .../org/apache/ignite/JsonProviderImpl.java     | 104 ++++
 .../java/org/apache/ignite/JsonStringImpl.java  |  71 +++
 modules/nodejs/pom.xml                          |   2 +-
 pom.xml                                         |   1 +
 12 files changed, 1459 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/pom.xml
----------------------------------------------------------------------
diff --git a/modules/json/pom.xml b/modules/json/pom.xml
new file mode 100644
index 0000000..88c300e
--- /dev/null
+++ b/modules/json/pom.xml
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+<!--
+    POM file.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.apache.ignite</groupId>
+        <artifactId>ignite-parent</artifactId>
+        <version>1</version>
+        <relativePath>../../parent</relativePath>
+    </parent>
+
+    <artifactId>ignite-json</artifactId>
+    <version>1.4.1-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>javax.json</groupId>
+            <artifactId>javax.json-api</artifactId>
+            <version>1.0</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-core</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-spring</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-log4j</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-indexing</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-rest-http</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.11</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.ignite</groupId>
+            <artifactId>ignite-core</artifactId>
+            <version>${project.version}</version>
+            <type>test-jar</type>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonArrayBuilderImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonArrayBuilderImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonArrayBuilderImpl.java
new file mode 100644
index 0000000..97b3e9a
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonArrayBuilderImpl.java
@@ -0,0 +1,130 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import org.apache.ignite.internal.util.typedef.internal.*;
+
+import javax.json.*;
+import java.math.*;
+import java.util.*;
+
+/**
+ * Json array builder.
+ */
+public class JsonArrayBuilderImpl implements JsonArrayBuilder {
+    /** Json array list. */
+    private List<JsonValue> jsonList = new ArrayList<>();
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(JsonValue val) {
+        A.notNull(val, "value");
+
+        jsonList.add(val);
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(String val) {
+        A.notNull(val, "value");
+
+        jsonList.add(new JsonStringImpl(val));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(BigDecimal val) {
+        A.notNull(val, "value");
+
+        jsonList.add(new JsonNumberImpl(val));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(BigInteger val) {
+        A.notNull(val, "value");
+
+        //TODO: optimize for value
+        jsonList.add(new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(int val) {
+        //TODO: optimize for value
+        jsonList.add(new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(long val) {
+        //TODO: optimize for value
+        jsonList.add(new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(double val) {
+        //TODO: optimize for value
+        jsonList.add(new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(boolean val) {
+        jsonList.add(val ? JsonValue.TRUE : JsonValue.FALSE);
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder addNull() {
+        jsonList.add(JsonValue.NULL);
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(JsonObjectBuilder bld) {
+        A.notNull(bld, "value");
+
+        jsonList.add(bld.build());
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder add(JsonArrayBuilder bld) {
+        A.notNull(bld, "value");
+
+        jsonList.add(bld.build());
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArray build() {
+        return new JsonArrayImpl(jsonList);
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonArrayImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonArrayImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonArrayImpl.java
new file mode 100644
index 0000000..9005c22
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonArrayImpl.java
@@ -0,0 +1,131 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.*;
+import java.util.*;
+
+/**
+ * Implementation of JsonArray
+ */
+public class JsonArrayImpl extends ArrayList<JsonValue> implements JsonArray {
+    /** Values for getValueAs. */
+    private List<JsonValue> val;
+
+    /**
+     * @param val List json values.
+     */
+    public JsonArrayImpl(List<JsonValue> val) {
+        super(val);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObject getJsonObject(int idx) {
+        return (JsonObject)get(idx);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArray getJsonArray(int idx) {
+        return (JsonArray)get(idx);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonNumber getJsonNumber(int idx) {
+        return (JsonNumber)get(idx);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonString getJsonString(int idx) {
+        return (JsonString)get(idx);
+    }
+
+    /** {@inheritDoc} */
+    @SuppressWarnings("unchecked")
+    @Override public <T extends JsonValue> List<T> getValuesAs(Class<T> clazz) {
+        if (val == null) {
+            val = new ArrayList(this.size());
+
+            for (int i = 0; i < size(); ++i)
+                val.add(get(i));
+
+            val = Collections.unmodifiableList(val);
+        }
+        return (List<T>) val;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getString(int idx) {
+        return getJsonString(idx).getString();
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getString(int idx, String dfltVal) {
+        try {
+            return getString(idx);
+        }
+        catch (Exception e) {
+            return dfltVal;
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getInt(int idx) {
+        return getJsonNumber(idx).intValue();
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getInt(int idx, int dfltVal) {
+        try {
+            return getInt(idx);
+        } catch (Exception e) {
+            return dfltVal;
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean getBoolean(int idx) {
+        JsonValue val = get(idx);
+
+        if (val.equals(JsonValue.TRUE))
+            return true;
+
+        if (val.equals(JsonValue.FALSE))
+            return false;
+
+        throw new ClassCastException();
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean getBoolean(int idx, boolean dfltVal) {
+        try {
+            return getBoolean(idx);
+        } catch (Exception e) {
+            return dfltVal;
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isNull(int idx) {
+        return get(idx).equals(JsonValue.NULL);
+    }
+
+    /** {@inheritDoc} */
+    @Override public ValueType getValueType() {
+        return ValueType.ARRAY;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonGeneratorImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonGeneratorImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonGeneratorImpl.java
new file mode 100644
index 0000000..95b336f
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonGeneratorImpl.java
@@ -0,0 +1,500 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.*;
+import javax.json.stream.*;
+import java.io.*;
+import java.math.*;
+import java.util.*;
+
+/**
+ * Json generator implementation.
+ */
+public class JsonGeneratorImpl implements JsonGenerator {
+    /** Writer. */
+    private final BufferedWriter writer;
+
+    private LinkedList<Element> ctx = new LinkedList();
+
+    /**
+     * @param writer Writer.
+     */
+    public JsonGeneratorImpl(Writer writer) {
+        this.writer = new BufferedWriter(writer);
+
+        ctx.push(new Element(Context.NONE, true));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeStartObject() {
+        try {
+            if (ctx.getLast().context() == Context.OBJECT ||
+                (ctx.getLast().context() == Context.NONE && !ctx.getLast().isFirst()))
+                throw new JsonGenerationException("No name for object field.");
+
+            writeComma();
+            writer.write('{');
+
+            ctx.addLast(new Element(Context.OBJECT, true));
+
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeStartObject(String name) {
+        try {
+            if (ctx.getLast().context() != Context.OBJECT)
+                throw new JsonGenerationException("Object with name in not object scope.");
+
+            writeComma();
+            writeString(name);
+            writer.write(":");
+            writer.write('{');
+
+            ctx.addLast(new Element(Context.OBJECT, true));
+
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeStartArray() {
+        try {
+            if (ctx.getLast().context() == Context.OBJECT ||
+                (ctx.getLast().context() == Context.NONE && !ctx.getLast().isFirst()))
+                throw new JsonGenerationException("Array in object scope.");
+
+            writeComma();
+            writer.write("[");
+
+            ctx.addLast(new Element(Context.ARRAY, true));
+
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeStartArray(String name) {
+        try {
+            if (ctx.getLast().context() != Context.OBJECT)
+                throw new JsonGenerationException("Array with name in not object scope.");
+
+            writeComma();
+            writeString(name);
+            writer.write(":");
+            writer.write('[');
+
+            ctx.addLast(new Element(Context.ARRAY, true));
+
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, JsonValue val) {
+        if (ctx.getLast().context() != Context.OBJECT)
+            throw new JsonGenerationException("Json value with name in not object scope.");
+
+        try {
+            switch (val.getValueType()) {
+                case ARRAY: {
+                    JsonArray arr = (JsonArray) val;
+
+                    writeStartArray(name);
+
+                    for (JsonValue el : arr)
+                        write(el);
+
+                    writeEnd();
+
+                    break;
+                }
+
+                case OBJECT: {
+                    JsonObject o = (JsonObject) val;
+
+                    writeStartObject(name);
+
+                    for (Map.Entry<String, JsonValue> member : o.entrySet())
+                        write(member.getKey(), member.getValue());
+
+                    writeEnd();
+
+                    break;
+                }
+
+                case STRING: {
+                    JsonString str = (JsonString) val;
+
+                    write(name, str.getString());
+
+                    break;
+                }
+
+                case NUMBER: {
+                    JsonNumber n = (JsonNumber) val;
+
+                    writeComma();
+                    writeString(name);
+                    writer.write(":");
+                    writeString(n.toString());
+
+                    break;
+                }
+                case TRUE: {
+                    write(name, true);
+
+                    break;
+                }
+
+                case FALSE: {
+                    write(name, false);
+
+                    break;
+                }
+
+                case NULL: {
+                    writeNull(name);
+
+                    break;
+                }
+            }
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, String val) {
+        return writeSimpleField(name, val);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, BigInteger val) {
+        return writeSimpleField(name, String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, BigDecimal val) {
+        return writeSimpleField(name, String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, int val) {
+        return writeSimpleField(name, String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, long val) {
+        return writeSimpleField(name, String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, double val) {
+        return writeSimpleField(name, String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String name, boolean val) {
+        return writeSimpleField(name, String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeNull(String name) {
+        return writeSimpleField(name, "null");
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeEnd() {
+        if (ctx.getLast().context() == Context.NONE)
+            throw new JsonGenerationException("Cannot call writeEnd in none context.");
+
+        try {
+            if (ctx.getLast().context() == Context.ARRAY)
+                writer.write("]");
+
+            if (ctx.getLast().context() == Context.OBJECT)
+                writer.write("}");
+
+            ctx.removeLast();
+
+            return this;
+        }
+        catch(IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(JsonValue val) {
+        if (ctx.getLast().context() != Context.ARRAY)
+            throw new JsonGenerationException("Json value without name in not array scope.");
+
+        try {
+            switch (val.getValueType()) {
+                case ARRAY: {
+                    JsonArray arr = (JsonArray) val;
+
+                    writeStartArray();
+
+                    for (JsonValue el : arr)
+                        write(el);
+
+                    writeEnd();
+
+                    break;
+                }
+
+                case OBJECT: {
+                    JsonObject o = (JsonObject) val;
+
+                    writeStartObject();
+
+                    for (Map.Entry<String, JsonValue> member : o.entrySet())
+                        write(member.getKey(), member.getValue());
+
+                    writeEnd();
+
+                    break;
+                }
+
+                case STRING: {
+                    JsonString str = (JsonString) val;
+
+                    write(str.getString());
+
+                    break;
+                }
+
+                case NUMBER: {
+                    JsonNumber n = (JsonNumber) val;
+
+                    writeComma();
+                    writeString(n.toString());
+
+                    break;
+                }
+                case TRUE: {
+                    write(true);
+
+                    break;
+                }
+
+                case FALSE: {
+                    write(false);
+
+                    break;
+                }
+
+                case NULL: {
+                    writeNull();
+
+                    break;
+                }
+            }
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(String val) {
+        return writeSimpleArrayElement(val);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(BigDecimal val) {
+        return writeSimpleArrayElement(String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(BigInteger val) {
+        return writeSimpleArrayElement(String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(int val) {
+        return writeSimpleArrayElement(String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(long val) {
+        return writeSimpleArrayElement(String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(double val) {
+        return writeSimpleArrayElement(String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator write(boolean val) {
+        return writeSimpleArrayElement(String.valueOf(val));
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator writeNull() {
+        return writeSimpleArrayElement("null");
+    }
+
+    /** {@inheritDoc} */
+    @Override public void close() {
+        try {
+            writer.close();
+        }
+        catch (IOException e) {
+            throw new JsonException("Could not close writer.", e);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public void flush() {
+        try {
+            writer.flush();
+        }
+        catch (IOException e) {
+            throw new JsonException("Could not flush buffer to writer.", e);
+        }
+    }
+
+    /**
+     * Write comma if object is not first.
+     *
+     * @throws IOException If failed.
+     */
+    private void writeComma() throws IOException{
+        if (!ctx.getLast().isFirst())
+            writer.write(",");
+
+        ctx.getLast().isFirst = false;
+    }
+
+    /**
+     * @param name Field name.
+     * @param val Field value.
+     */
+    private JsonGenerator writeSimpleField(String name, String val) {
+        if (ctx.getLast().context() != Context.OBJECT)
+            throw new JsonGenerationException("String with name in not object scope.");
+
+        try {
+            writeComma();
+            writeString(name);
+            writer.write(":");
+            writeString(val);
+
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+
+    /**
+     * @param val Field value.
+     */
+    private JsonGenerator writeSimpleArrayElement(String val) {
+        if (ctx.getLast().context() != Context.ARRAY)
+            throw new JsonGenerationException("String without name in not array scope.");
+
+        try {
+            writeComma();
+            writeString(val);
+
+            return this;
+        }
+        catch (IOException e) {
+            throw new JsonException("Writer fails.", e);
+        }
+    }
+
+    /**
+     * @param str String to write.
+     * @throws IOException If failed.
+     * //TODO: escape string.
+     */
+    private void writeString(String str) throws IOException {
+        writer.write(str);
+    }
+
+    /**
+     * Generator element.
+     */
+    private static class Element {
+        /** Context. */
+        private Context ctx;
+
+        /** First element flag. */
+        private boolean isFirst;
+
+        /**
+         * @param ctx Context.
+         * @param isFirst First element flag.
+         */
+        public Element(Context ctx, boolean isFirst) {
+            this.ctx = ctx;
+            this.isFirst = isFirst;
+        }
+
+        /**
+         * @return First element flag.
+         */
+        public boolean isFirst() {
+            return isFirst;
+        }
+
+        /**
+         * @return Context.
+         */
+        public Context context() {
+            return ctx;
+        }
+    }
+    /**
+     * Context for writer.
+     */
+    private enum Context {
+        /** Writing object. */
+        OBJECT,
+
+        /** Writing array. */
+        ARRAY,
+
+        /** Not in object or in array. */
+        NONE
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonLocationImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonLocationImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonLocationImpl.java
new file mode 100644
index 0000000..078c16f
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonLocationImpl.java
@@ -0,0 +1,60 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.stream.*;
+
+/**
+ * Json location implementation.
+ */
+public class JsonLocationImpl implements JsonLocation {
+    /** Column number. */
+    private final long col;
+
+    /** Line number. */
+    private final long line;
+
+    /** Stream offset. */
+    private final long off;
+
+    /**
+     * @param line Line number.
+     * @param col Column number.
+     * @param streamOff Stream offset.
+     */
+    JsonLocationImpl(long line, long col, long streamOff) {
+        this.line = line;
+        this.col = col;
+        this.off = streamOff;
+    }
+
+    /** {@inheritDoc} */
+    @Override public long getLineNumber() {
+        return line;
+    }
+
+    /** {@inheritDoc} */
+    @Override public long getColumnNumber() {
+        return col;
+    }
+
+    /** {@inheritDoc} */
+    @Override public long getStreamOffset() {
+        return off;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonNumberImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonNumberImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonNumberImpl.java
new file mode 100644
index 0000000..7cd0a68
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonNumberImpl.java
@@ -0,0 +1,116 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.*;
+import java.math.*;
+
+/**
+ * Json number implementation.
+ * //TODO: optimize for int, long, double...
+ */
+public class JsonNumberImpl implements JsonNumber {
+    /** Value. */
+    private final BigDecimal val;
+
+    /**
+     * @param val Value.
+     */
+    public JsonNumberImpl(BigDecimal val){
+        this.val = val;
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isIntegral() {
+        if (val == null)
+            return false;
+
+        return val.scale() == 0;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int intValue() {
+        return val.intValue();
+    }
+
+    /** {@inheritDoc} */
+    @Override public int intValueExact() {
+        return val.intValueExact();
+    }
+
+    /** {@inheritDoc} */
+    @Override public long longValue() {
+        return val.longValue();
+    }
+
+    /** {@inheritDoc} */
+    @Override public long longValueExact() {
+        return val.longValueExact();
+    }
+
+    /** {@inheritDoc} */
+    @Override public BigInteger bigIntegerValue() {
+        return val.toBigInteger();
+    }
+
+    /** {@inheritDoc} */
+    @Override public BigInteger bigIntegerValueExact() {
+        return val.toBigIntegerExact();
+    }
+
+    /** {@inheritDoc} */
+    @Override public double doubleValue() {
+        return val.doubleValue();
+    }
+
+    /** {@inheritDoc} */
+    @Override public BigDecimal bigDecimalValue() {
+        return val;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ValueType getValueType() {
+        return ValueType.NUMBER;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String toString() {
+        return val.toString();
+    }
+
+    /** {@inheritDoc} */
+    @Override public int hashCode() {
+        if (val == null)
+            return 0;
+
+        return val.hashCode();
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean equals(Object obj) {
+        if (obj == null || !(obj instanceof JsonNumberImpl))
+            return false;
+
+        BigDecimal val0 = ((JsonNumberImpl)obj).val;
+
+        if (val == null)
+            return val0 == null;
+
+        return val.equals(val0);
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonObjectBuilderImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonObjectBuilderImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonObjectBuilderImpl.java
new file mode 100644
index 0000000..6246794
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonObjectBuilderImpl.java
@@ -0,0 +1,141 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import org.apache.ignite.internal.util.typedef.internal.*;
+
+import javax.json.*;
+import java.math.*;
+import java.util.*;
+
+/**
+ * Json object builder implementation.
+ */
+public class JsonObjectBuilderImpl implements JsonObjectBuilder {
+    /** Json object map. */
+    private Map<String, JsonValue> jsonMap = new HashMap<>();
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, JsonValue val) {
+        A.notNull(name, "key", val, "value");
+
+        jsonMap.put(name, val);
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, String val) {
+        A.notNull(name, "key", val, "value");
+
+        jsonMap.put(name, new JsonStringImpl(val));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, BigInteger val) {
+        A.notNull(name, "key", val, "value");
+
+        //TODO: optimize for value
+        jsonMap.put(name, new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, BigDecimal val) {
+        A.notNull(name, "key", val, "value");
+
+        //TODO: optimize for value
+        jsonMap.put(name, new JsonNumberImpl(val));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, int val) {
+        A.notNull(name, "key");
+
+        //TODO: optimize for value
+        jsonMap.put(name, new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, long val) {
+        A.notNull(name, "key");
+
+            //TODO: optimize for value
+            jsonMap.put(name, new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, double val) {
+        A.notNull(name, "key");
+
+        //TODO: optimize for value
+        jsonMap.put(name, new JsonNumberImpl(new BigDecimal(val)));
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, boolean val) {
+        A.notNull(name, "key");
+
+        jsonMap.put(name, val ? JsonValue.TRUE : JsonValue.FALSE);
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder addNull(String name) {
+        A.notNull(name, "key");
+
+        jsonMap.put(name, JsonValue.NULL);
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, JsonObjectBuilder bld) {
+        A.notNull(name, "key", bld, "value");
+
+        jsonMap.put(name, bld.build());
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder add(String name, JsonArrayBuilder bld) {
+        A.notNull(name, "key", bld, "value");
+
+        jsonMap.put(name, bld.build());
+
+        return this;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObject build() {
+        return new JsonObjectImpl(jsonMap);
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonObjectImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonObjectImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonObjectImpl.java
new file mode 100644
index 0000000..8cb7637
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonObjectImpl.java
@@ -0,0 +1,116 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.*;
+import java.util.*;
+
+/**
+ * JsonObject implementation.
+ */
+public class JsonObjectImpl extends HashMap<String, JsonValue> implements JsonObject {
+    /**
+     * @param val Map to store.
+     */
+    public JsonObjectImpl(Map<String, JsonValue> val) {
+        super(val);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArray getJsonArray(String name) {
+        return (JsonArray)get(name);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObject getJsonObject(String name) {
+        return (JsonObject)get(name);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonNumber getJsonNumber(String name) {
+        return (JsonNumber)get(name);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonString getJsonString(String name) {
+        return (JsonString)get(name);
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getString(String name) {
+        return getJsonString(name).getString();
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getString(String name, String dfltVal) {
+        try {
+            return getString(name);
+        }
+        catch (Exception e) {
+            return dfltVal;
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getInt(String name) {
+        return getJsonNumber(name).intValue();
+    }
+
+    /** {@inheritDoc} */
+    @Override public int getInt(String name, int dfltVal) {
+        try {
+            return getInt(name);
+        }
+        catch (Exception e) {
+            return dfltVal;
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean getBoolean(String name) {
+        JsonValue val = get(name);
+
+        if (val.equals(JsonValue.TRUE))
+            return true;
+
+        if (val.equals(JsonValue.FALSE))
+            return false;
+
+        throw new ClassCastException();
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean getBoolean(String name, boolean dfltVal) {
+        try {
+            return getBoolean(name);
+        }
+        catch (Exception e) {
+            return dfltVal;
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean isNull(String name) {
+        return get(name).equals(JsonValue.NULL);
+    }
+
+    /** {@inheritDoc} */
+    @Override public ValueType getValueType() {
+        return ValueType.OBJECT;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonProviderImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonProviderImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonProviderImpl.java
new file mode 100644
index 0000000..9bb6305
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonProviderImpl.java
@@ -0,0 +1,104 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.*;
+import javax.json.spi.*;
+import javax.json.stream.*;
+import java.io.*;
+import java.util.*;
+
+/**
+ * Json provider implementation.
+ */
+public class JsonProviderImpl extends JsonProvider {
+    /** {@inheritDoc} */
+    @Override public JsonParser createParser(Reader reader) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonParser createParser(InputStream in) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonParserFactory createParserFactory(Map<String, ?> config) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator createGenerator(Writer writer) {
+        return new JsonGeneratorImpl(writer);
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGenerator createGenerator(OutputStream out) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonGeneratorFactory createGeneratorFactory(Map<String, ?> config) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonReader createReader(Reader reader) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonReader createReader(InputStream in) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonWriter createWriter(Writer writer) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonWriter createWriter(OutputStream out) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonWriterFactory createWriterFactory(Map<String, ?> config) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonReaderFactory createReaderFactory(Map<String, ?> config) {
+        return null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonObjectBuilder createObjectBuilder() {
+        return new JsonObjectBuilderImpl();
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonArrayBuilder createArrayBuilder() {
+        return new JsonArrayBuilderImpl();
+    }
+
+    /** {@inheritDoc} */
+    @Override public JsonBuilderFactory createBuilderFactory(Map<String, ?> config) {
+        return null;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/json/src/main/java/org/apache/ignite/JsonStringImpl.java
----------------------------------------------------------------------
diff --git a/modules/json/src/main/java/org/apache/ignite/JsonStringImpl.java b/modules/json/src/main/java/org/apache/ignite/JsonStringImpl.java
new file mode 100644
index 0000000..6314826
--- /dev/null
+++ b/modules/json/src/main/java/org/apache/ignite/JsonStringImpl.java
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.ignite;
+
+import javax.json.*;
+
+/**
+ * Json string implementation.
+ */
+public class JsonStringImpl implements JsonString {
+    /** Value. */
+    private final String val;
+
+    /**
+     * @param val Value.
+     */
+    public JsonStringImpl(String val) {
+        this.val = val;
+    }
+
+    /** {@inheritDoc} */
+    @Override public String getString() {
+        return val;
+    }
+
+    /** {@inheritDoc} */
+    @Override public CharSequence getChars() {
+        return val;
+    }
+
+    /** {@inheritDoc} */
+    @Override public ValueType getValueType() {
+        return ValueType.STRING;
+    }
+
+    /** {@inheritDoc} */
+    @Override public int hashCode() {
+        if (val == null)
+            return 0;
+
+        return val.hashCode();
+    }
+
+    /** {@inheritDoc} */
+    @Override public boolean equals(Object obj) {
+        if (obj == null || !(obj instanceof JsonString))
+            return false;
+
+        JsonString other = (JsonString)obj;
+
+        if (val == null)
+            return other.getString() == null;
+
+        return val.equals(other.getString());
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/modules/nodejs/pom.xml
----------------------------------------------------------------------
diff --git a/modules/nodejs/pom.xml b/modules/nodejs/pom.xml
index 6897511..aa649f1 100644
--- a/modules/nodejs/pom.xml
+++ b/modules/nodejs/pom.xml
@@ -31,7 +31,7 @@
     </parent>
 
     <artifactId>ignite-nodejs</artifactId>
-    <version>1.2.1-SNAPSHOT</version>
+    <version>1.4.1-SNAPSHOT</version>
 
     <dependencies>
         <dependency>

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/e5a33c1d/pom.xml
----------------------------------------------------------------------
diff --git a/pom.xml b/pom.xml
index 771689b..777285e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -74,6 +74,7 @@
         <module>modules/nodejs</module>
         <module>modules/kafka</module>
         <module>modules/yarn</module>
+        <module>modules/json</module>
     </modules>
 
     <profiles>