getBalances(List<Address>) switch to POST request from GET (#83)

* update waves-transactions to 1.0.6

README.md

@@ -13,18 +13,18 @@ Use the codes below to add WavesJ as a dependency for your project.
 <dependency>
     <groupId>com.wavesplatform</groupId>
     <artifactId>wavesj</artifactId>
-    <version>1.0.4</version>
+    <version>1.1.0</version>
 </dependency>
 ```
 
 ##### Gradle:
 ```
-compile group: 'com.wavesplatform', name: 'wavesj', version: '1.0.4'
+compile group: 'com.wavesplatform', name: 'wavesj', version: '1.1.0'
 ```
 
 ##### SBT:
 ```
-libraryDependencies += "com.wavesplatform" % "wavesj" % "1.0.4"
+libraryDependencies += "com.wavesplatform" % "wavesj" % "1.1.0"
 ```
 
 [This library's page at Maven Central](https://mvnrepository.com/artifact/com.wavesplatform/wavesj)

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.wavesplatform</groupId>
     <artifactId>wavesj</artifactId>
-    <version>1.0.4</version>
+    <version>1.1.0</version>
     <packaging>jar</packaging>
 
     <properties>
@@ -182,7 +182,7 @@
         <dependency>
             <groupId>com.wavesplatform</groupId>
             <artifactId>waves-transactions</artifactId>
-            <version>1.0.5</version>
+            <version>1.0.6</version>
         </dependency>
 
         <!-- http client -->

src/main/java/com/wavesplatform/wavesj/AssetBalance.java

@@ -10,13 +10,13 @@
 @SuppressWarnings("unused")
 public class AssetBalance {
 
-    public final AssetId assetId;
-    public final long balance;
-    public final boolean reissuable;
-    public final long minSponsoredAssetFee;
-    public final long sponsorBalance;
-    public final long quantity;
-    public final Transaction issueTransaction;
+    private final AssetId assetId;
+    private final long balance;
+    private final boolean reissuable;
+    private final long minSponsoredAssetFee;
+    private final long sponsorBalance;
+    private final long quantity;
+    private final Transaction issueTransaction;
 
     @JsonCreator
     public AssetBalance(@JsonProperty("assetId") AssetId assetId,

src/main/java/com/wavesplatform/wavesj/Balance.java

@@ -1,7 +1,7 @@
 package com.wavesplatform.wavesj;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import im.mak.waves.transactions.account.Address;
+import com.wavesplatform.transactions.account.Address;
 
 import java.util.Objects;
 

src/main/java/com/wavesplatform/wavesj/Node.java

@@ -106,16 +106,28 @@ public long getBalance(Address address, int confirmations) throws IOException, N
     }
 
     public List<Balance> getBalances(List<Address> addresses) throws IOException, NodeException {
-        RequestBuilder request = get("/addresses/balance");
-        addresses.forEach(address -> request.addParameter("address", address.toString()));
-        return asType(request, TypeRef.BALANCES);
+        ObjectNode jsonBody = JSON_MAPPER.createObjectNode();
+        ArrayNode jsonAddresses = jsonBody.putArray("addresses");
+        addresses.forEach(address -> jsonAddresses.add(address.toString()));
+
+        StringEntity body = new StringEntity(JSON_MAPPER.writeValueAsString(jsonBody), StandardCharsets.UTF_8);
+
+        return asType(post("/addresses/balance")
+                .addHeader("Content-Type", "application/json")
+                .setEntity(body), TypeRef.BALANCES);
     }
 
     public List<Balance> getBalances(List<Address> addresses, int height) throws IOException, NodeException {
-        RequestBuilder request = get("/addresses/balance");
-        addresses.forEach(address -> request.addParameter("address", address.toString()));
-        request.addParameter("height", String.valueOf(height));
-        return asType(request, TypeRef.BALANCES);
+        ObjectNode jsonBody = JSON_MAPPER.createObjectNode();
+        ArrayNode jsonAddresses = jsonBody.putArray("addresses");
+        addresses.forEach(address -> jsonAddresses.add(address.toString()));
+
+        jsonBody.put("height", height);
+        StringEntity body = new StringEntity(JSON_MAPPER.writeValueAsString(jsonBody), StandardCharsets.UTF_8);
+
+        return asType(post("/addresses/balance")
+                .addHeader("Content-Type", "application/json")
+                .setEntity(body), TypeRef.BALANCES);
     }
 
     public BalanceDetails getBalanceDetails(Address address) throws IOException, NodeException {
@@ -527,30 +539,30 @@ public ScriptInfo compileScript(String source) throws IOException, NodeException
     // HTTP REQUESTS
     //===============
 
-    private RequestBuilder get(String path) {
+    protected RequestBuilder get(String path) {
         return RequestBuilder.get(uri.resolve(path));
     }
 
-    private RequestBuilder post(String path) {
+    protected RequestBuilder post(String path) {
         return RequestBuilder.post(uri.resolve(path));
     }
 
-    private HttpResponse exec(HttpUriRequest request) throws IOException, NodeException {
+    protected HttpResponse exec(HttpUriRequest request) throws IOException, NodeException {
         HttpResponse r = client.execute(request);
         if (r.getStatusLine().getStatusCode() != HttpStatus.SC_OK)
             throw mapper.readValue(r.getEntity().getContent(), NodeException.class);
         return r;
     }
 
-    private InputStream asInputStream(RequestBuilder request) throws IOException, NodeException {
+    protected InputStream asInputStream(RequestBuilder request) throws IOException, NodeException {
         return exec(request.build()).getEntity().getContent();
     }
 
-    private <T> T asType(RequestBuilder request, TypeReference<T> reference) throws IOException, NodeException {
+    protected <T> T asType(RequestBuilder request, TypeReference<T> reference) throws IOException, NodeException {
         return mapper.readValue(asInputStream(request), reference);
     }
 
-    private JsonNode asJson(RequestBuilder request) throws IOException, NodeException {
+    protected JsonNode asJson(RequestBuilder request) throws IOException, NodeException {
         return JSON_MAPPER.readTree(asInputStream(request));
     }