Initialize gradle project

1 files changed, 116 insertions, 0 deletions

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueTime.java b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueTime.java
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+/**
+ * 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 java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+
+import pl.edu.mimuw.cloudatlas.model.Value;
+import pl.edu.mimuw.cloudatlas.model.ValueTime;
+
+/**
+ * A class representing a POSIX time in milliseconds. This is a simple wrapper of a Java <code>Long</code> object.
+ */
+public class ValueTime extends ValueSimple<Long> {
+    /**
+     * A format string for constructing from or converting to a <code>String</code> object.
+     */
+    public static final DateFormat TIME_FORMAT = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS");
+
+    /**
+     * Constructs a new <code>ValueTime</code> object wrapping the specified value.
+     *
+     * @param value the POSIX time
+     */
+    public ValueTime(Long value) {
+        super(value);
+    }
+
+    @Override
+    public Type getType() {
+        return TypePrimitive.TIME;
+    }
+
+    @Override
+    public Value getDefaultValue() {
+        return new ValueTime(0l);
+    }
+
+    /**
+     * Constructs a new <code>ValueTime</code> object from its textual representation.
+     *
+     * @param time a time formatted according to {@link #TIME_FORMAT}
+     * @throws ParseException if the <code>time</code> is incorrect
+     * @see #TIME_FORMAT
+     */
+    public ValueTime(String time) throws ParseException {
+        this(TIME_FORMAT.parse(time).getTime());
+    }
+
+    @Override
+    public ValueBoolean isLowerThan(Value value) {
+        sameTypesOrThrow(value, Operation.COMPARE);
+        if(isNull() || value.isNull())
+            return new ValueBoolean(null);
+        return new ValueBoolean(getValue() < ((ValueTime)value).getValue());
+    }
+
+    @Override
+    public ValueTime addValue(Value value) {
+        if(!value.getType().isCompatible(TypePrimitive.DURATION))
+            throw new IncompatibleTypesException(getType(), value.getType(), Operation.ADD);
+        if(isNull() || value.isNull())
+            return new ValueTime((Long)null);
+        return new ValueTime(getValue() + ((ValueDuration)value).getValue());
+    }
+
+    @Override
+    public Value subtract(Value value) {
+        if(value.getType().isCompatible(TypePrimitive.DURATION)) {
+            if(isNull() || value.isNull())
+                return new ValueTime((Long)null);
+            return new ValueTime(getValue() - ((ValueDuration)value).getValue());
+        } else if(value.getType().isCompatible(TypePrimitive.TIME)) {
+            if(isNull() || value.isNull())
+                return new ValueTime((Long)null);
+            return new ValueDuration(getValue() - ((ValueTime)value).getValue());
+        }
+        throw new IncompatibleTypesException(getType(), value.getType(), Operation.SUBTRACT);
+
+    }
+
+    @Override
+    public Value convertTo(Type type) {
+        switch(type.getPrimaryType()) {
+            case STRING:
+                return getValue() == null? ValueString.NULL_STRING : new ValueString(TIME_FORMAT.format(getValue()));
+            case TIME:
+                return this;
+            default:
+                throw new UnsupportedConversionException(getType(), type);
+        }
+    }
+}