1 files changed, 133 insertions, 0 deletions
diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueInt.java b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueInt.java
new file mode 100644
index 0000000..8811d57
--- /dev/null
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueInt.java
@@ -0,0 +1,133 @@
+/**
+ * Copyright (c) 2014, University of Warsaw
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
+ * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package pl.edu.mimuw.cloudatlas.model;
+
+import pl.edu.mimuw.cloudatlas.model.Type.PrimaryType;
+import pl.edu.mimuw.cloudatlas.model.Value;
+import pl.edu.mimuw.cloudatlas.model.ValueInt;
+
+/**
+ * A class that wraps a Java <code>Long</code> object.
+ */
+public class ValueInt extends ValueSimple<Long> {
+    /**
+     * Constructs a new <code>ValueInt</code> object wrapping the specified <code>value</code>.
+     *
+     * @param value the value to wrap
+     */
+    public ValueInt(Long value) {
+        super(value);
+    }
+
+    @Override
+    public Type getType() {
+        return TypePrimitive.INTEGER;
+    }
+
+    @Override
+    public Value getDefaultValue() {
+        return new ValueInt(0l);
+    }
+
+    @Override
+    public ValueBoolean isLowerThan(Value value) {
+        sameTypesOrThrow(value, Operation.COMPARE);
+        if(isNull() || value.isNull())
+            return new ValueBoolean(null);
+        return new ValueBoolean(getValue() < ((ValueInt)value).getValue());
+    }
+
+    @Override
+    public ValueInt addValue(Value value) {
+        sameTypesOrThrow(value, Operation.ADD);
+        if(isNull() || value.isNull())
+            return new ValueInt(null);
+        return new ValueInt(getValue() + ((ValueInt)value).getValue());
+    }
+
+    @Override
+    public ValueInt subtract(Value value) {
+        sameTypesOrThrow(value, Operation.SUBTRACT);
+        if(isNull() || value.isNull())
+            return new ValueInt(null);
+        return new ValueInt(getValue() - ((ValueInt)value).getValue());
+    }
+
+    @Override
+    public Value multiply(Value value) {
+        if(value.getType().getPrimaryType() == PrimaryType.DURATION)
+            return value.multiply(this);
+        sameTypesOrThrow(value, Operation.MULTIPLY);
+        if(isNull() || value.isNull())
+            return new ValueInt(null);
+        return new ValueInt(getValue() * ((ValueInt)value).getValue());
+    }
+
+    @Override
+    public ValueDouble divide(Value value) {
+        sameTypesOrThrow(value, Operation.DIVIDE);
+        if(value.isNull())
+            return new ValueDouble(null);
+        if(((ValueInt)value).getValue() == 0l)
+            throw new ArithmeticException("Division by zero.");
+        if(isNull())
+            return new ValueDouble(null);
+        return new ValueDouble((double)getValue() / ((ValueInt)value).getValue());
+    }
+
+    @Override
+    public ValueInt modulo(Value value) {
+        sameTypesOrThrow(value, Operation.MODULO);
+        if(value.isNull())
+            return new ValueInt(null);
+        if(((ValueInt)value).getValue() == 0l)
+            throw new ArithmeticException("Division by zero.");
+        if(isNull())
+            return new ValueInt(null);
+        return new ValueInt(getValue() % ((ValueInt)value).getValue());
+    }
+
+    @Override
+    public ValueInt negate() {
+        return new ValueInt(isNull()? null : -getValue());
+    }
+
+    @Override
+    public Value convertTo(Type type) {
+        switch(type.getPrimaryType()) {
+            case DOUBLE:
+                return new ValueDouble(getValue() == null? null : getValue().doubleValue());
+            case DURATION:
+                return new ValueDuration(getValue());
+            case INT:
+                return this;
+            case STRING:
+                return getValue() == null? ValueString.NULL_STRING : new ValueString(Long.toString(getValue()
+                        .longValue()));
+            default:
+                throw new UnsupportedConversionException(getType(), type);
+        }
+    }
+}