Implemented Java hashCode / equals contract in value entites to make them

better usable in HashMaps etc.

Author: cmorgner

src/main/java/de/morgner/cex/CexClient.java

@@ -240,8 +240,8 @@ private synchronized void throttle() {
 		try {
 
 			// do not make more than 1 request per second
-			while (System.currentTimeMillis() < lastCall + 1010) {
-				Thread.sleep(100);
+			while (System.currentTimeMillis() < (lastCall + 1001)) {
+				Thread.sleep(10);
 			}
 
 			// set timer for throttling
@@ -252,7 +252,7 @@ private synchronized void throttle() {
 
 	private Map<String, Object> toMap(final String key, final Object value) {
 
-		final Map<String, Object> map = new LinkedHashMap<String, Object>();
+		final Map<String, Object> map = new LinkedHashMap<>();
 
 		map.put(key, value);
 
@@ -261,7 +261,7 @@ private Map<String, Object> toMap(final String key, final Object value) {
 
 	private Map<String, Object> toMap(final String key1, final Object value1, final String key2, final Object value2, final String key3, final Object value3) {
 
-		final Map<String, Object> map = new LinkedHashMap<String, Object>();
+		final Map<String, Object> map = new LinkedHashMap<>();
 
 		map.put(key1, value1);
 		map.put(key2, value2);

src/main/java/de/morgner/cex/api/Amount.java

@@ -30,6 +30,23 @@ public double getAvailable() {
 	public double getOrders() {
 		return orders;
 	}
+	
+	// ----- equals / hashCode contract -----
+	@Override
+	public int hashCode() {
+		return Double.valueOf(available).hashCode() ^ Double.valueOf(orders).hashCode();
+	}
+	
+	@Override
+	public boolean equals(final Object other) {
+		
+		if (other instanceof Amount) {
+			
+			return ((Amount)other).hashCode() == this.hashCode();
+		}
+		
+		return false;
+	}
 
 	// ----- interface Comparable -----
 	public int compareTo(Amount o) {

src/main/java/de/morgner/cex/api/Order.java

@@ -57,6 +57,23 @@ public double getAmount() {
 	public double getPending() {
 		return pending;
 	}
+	
+	// ----- equals / hashCode contract -----
+	@Override
+	public int hashCode() {
+		return type.hashCode() ^ Double.valueOf(price).hashCode() ^ Double.valueOf(amount).hashCode() ^ Double.valueOf(pending).hashCode();
+	}
+	
+	@Override
+	public boolean equals(final Object other) {
+		
+		if (other instanceof Order) {
+			
+			return ((Order)other).hashCode() == this.hashCode();
+		}
+		
+		return false;
+	}
 
 	// ----- interface Comparable -----
 	public int compareTo(final Order o) {

src/main/java/de/morgner/cex/api/OrderBook.java

@@ -35,4 +35,21 @@ public List<List<Double>> getBids() {
 	public List<List<Double>> getAsks() {
 		return asks;
 	}
+	
+	// ----- equals / hashCode contract -----
+	@Override
+	public int hashCode() {
+		return Long.valueOf(timestamp).hashCode();
+	}
+	
+	@Override
+	public boolean equals(final Object other) {
+		
+		if (other instanceof OrderBook) {
+			
+			return ((OrderBook)other).hashCode() == this.hashCode();
+		}
+		
+		return false;
+	}
 }

src/main/java/de/morgner/cex/api/Ticker.java

@@ -61,4 +61,21 @@ public double getBid() {
 	public double getAsk() {
 		return ask;
 	}
+	
+	// ----- equals / hashCode contract -----
+	@Override
+	public int hashCode() {
+		return Long.valueOf(timestamp).hashCode();
+	}
+	
+	@Override
+	public boolean equals(final Object other) {
+		
+		if (other instanceof Trade) {
+			
+			return ((Trade)other).hashCode() == this.hashCode();
+		}
+		
+		return false;
+	}
 }

src/main/java/de/morgner/cex/api/Trade.java

@@ -36,6 +36,23 @@ public double getPrice() {
 	public long getDate() {
 		return date;
 	}
+	
+	// ----- equals / hashCode contract -----
+	@Override
+	public int hashCode() {
+		return Long.valueOf(tid).hashCode();
+	}
+	
+	@Override
+	public boolean equals(final Object other) {
+		
+		if (other instanceof Trade) {
+			
+			return ((Trade)other).hashCode() == this.hashCode();
+		}
+		
+		return false;
+	}
 
 	// ----- interface Comparable -----
 	public int compareTo(Trade o) {