From b1078581d4730d4944180a739fcce51a39259112 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Sun, 3 Nov 2019 12:55:03 +0100
Subject: Initialize gradle project

---
 .../pl/edu/mimuw/cloudatlas/model/ValueString.java | 120 +++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 src/main/java/pl/edu/mimuw/cloudatlas/model/ValueString.java

(limited to 'src/main/java/pl/edu/mimuw/cloudatlas/model/ValueString.java')

diff --git a/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueString.java b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueString.java
new file mode 100644
index 0000000..314c602
--- /dev/null
+++ b/src/main/java/pl/edu/mimuw/cloudatlas/model/ValueString.java
@@ -0,0 +1,120 @@
+/**
+ * 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.ParseException;
+
+import pl.edu.mimuw.cloudatlas.model.Value;
+import pl.edu.mimuw.cloudatlas.model.ValueString;
+
+/**
+ * A class that wraps a Java <code>String</code> object.
+ */
+public class ValueString extends ValueSimple<String> {
+    /**
+     * Result of converting values representing null to <code>ValueString</code>.
+     */
+    protected static final ValueString NULL_STRING = new ValueString("NULL");
+
+    /**
+     * Constructs a new <code>ValueString</code> object wrapping the specified <code>value</code>.
+     *
+     * @param value the value to wrap
+     */
+    public ValueString(String value) {
+        super(value);
+    }
+
+    @Override
+    public Type getType() {
+        return TypePrimitive.STRING;
+    }
+
+    @Override
+    public Value getDefaultValue() {
+        return new ValueString("");
+    }
+
+    @Override
+    public ValueBoolean isLowerThan(Value value) {
+        sameTypesOrThrow(value, Operation.COMPARE);
+        if(isNull() || value.isNull())
+            return new ValueBoolean(null);
+        return new ValueBoolean(getValue().compareTo(((ValueString)value).getValue()) < 0);
+    }
+
+    @Override
+    public ValueString addValue(Value value) {
+        sameTypesOrThrow(value, Operation.ADD);
+        if(isNull() || value.isNull())
+            return new ValueString(null);
+        return new ValueString(getValue().concat(((ValueString)value).getValue()));
+    }
+
+    @Override
+    public ValueBoolean regExpr(Value value) {
+        sameTypesOrThrow(value, Operation.REG_EXPR);
+        if(isNull() || value.isNull())
+            return new ValueBoolean(null);
+        return new ValueBoolean(getValue().matches(((ValueString)value).getValue()));
+    }
+
+    @Override
+    public Value convertTo(Type type) {
+        switch(type.getPrimaryType()) {
+            case BOOLEAN:
+                return new ValueBoolean(Boolean.parseBoolean(getValue()));
+            case DOUBLE:
+                try {
+                    return new ValueDouble(Double.parseDouble(getValue()));
+                } catch(NumberFormatException exception) {
+                    return new ValueDouble(null);
+                }
+            case DURATION:
+                return new ValueDuration(getValue());
+            case INT:
+                try {
+                    return new ValueInt(Long.parseLong(getValue()));
+                } catch(NumberFormatException exception) {
+                    return new ValueInt(null);
+                }
+            case STRING:
+                return getValue() == null? ValueString.NULL_STRING : this;
+            case TIME:
+                try {
+                    return new ValueTime(getValue());
+                } catch(ParseException exception) {
+                    return new ValueTime((Long)null);
+                }
+            default:
+                throw new UnsupportedConversionException(getType(), type);
+        }
+    }
+
+    @Override
+    public ValueInt valueSize() {
+        return new ValueInt(getValue() == null? null : (long)getValue().length());
+    }
+}
-- 
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