Initial commit.

src/main/java/net/thauvin/erik/httpstatus/Reasons.java

@@ -0,0 +1,75 @@
+/*
+ * HttpStatus.java
+ *
+ * Copyright (c) 2015 Erik C. Thauvin (http://erik.thauvin.net/)
+ * All rights reserved.
+ */
+package net.thauvin.erik.httpstatus;
+
+import java.util.Map;
+import java.util.ResourceBundle;
+import java.util.TreeMap;
+
+/**
+ * The <code>Reasons</code> class.
+ *
+ * @author <a href="mailto:erik@thauvin.net">Erik C. Thauvin</a>
+ * @created 2015-12-02
+ * @since 1.0
+ */
+public class Reasons
+{
+	/**
+	 * The reason phrases map.
+	 */
+	private static final Map<String, String> REASON_PHRASES = new TreeMap<String, String>();
+
+	/**
+	 * Gets the reason phrase for the specified status code.
+	 *
+	 * @param statusCode The status code.
+	 *
+	 * @return The reason phrase, or <code>null</code>.
+	 */
+	public static String getReasonPhrase(int statusCode)
+	{
+		return getReasonPhrase(Integer.toString(statusCode));
+	}
+
+	/**
+	 * Gets the reason phrase for the specified status code.
+	 *
+	 * @param statusCode The status code.
+	 *
+	 * @return The reason phrase, or <code>null</code>.
+	 */
+	public static String getReasonPhrase(String statusCode)
+	{
+		return REASON_PHRASES.get(statusCode);
+	}
+
+	/**
+	 * Outputs the status codes and reason phrases.
+	 *
+	 * @param args The command line arguments.
+	 */
+	public static void main(String[] args)
+	{
+		for (final Map.Entry<String, String> entry : REASON_PHRASES.entrySet())
+		{
+			System.out.println(entry.getKey() + '=' + entry.getValue());
+		}
+	}
+
+	/**
+	 * Initializes the reason phrases map.
+	 */
+	static
+	{
+		final ResourceBundle bundle = ResourceBundle.getBundle("reasons", java.util.Locale.getDefault());
+		for (final String key : bundle.keySet())
+		{
+			REASON_PHRASES.put(key, bundle.getString(key));
+		}
+	}
+}

src/main/java/net/thauvin/erik/httpstatus/taglibs/ReasonTag.java

@@ -0,0 +1,87 @@
+/*
+ * ReasonTag.java
+ *
+ * Copyright (c) 2015 Erik C. Thauvin (http://erik.thauvin.net/)
+ * All rights reserved.
+ */
+package net.thauvin.erik.httpstatus.taglibs;
+
+import net.thauvin.erik.httpstatus.Reasons;
+
+import javax.servlet.jsp.JspException;
+import javax.servlet.jsp.JspWriter;
+import javax.servlet.jsp.PageContext;
+import javax.servlet.jsp.tagext.SimpleTagSupport;
+import java.io.IOException;
+
+/**
+ * The <code>ReasonTag</code> class.
+ *
+ * @author <a href="mailto:erik@thauvin.net">Erik C. Thauvin</a>
+ * @created 2015-12-02
+ * @since 1.0
+ */
+public class ReasonTag extends SimpleTagSupport
+{
+	private int statusCode;
+	private String defaultValue;
+
+	@Override
+	public void doTag()
+			throws JspException
+	{
+		final PageContext pageContext = (PageContext) getJspContext();
+		final JspWriter out = pageContext.getOut();
+
+		try
+		{
+			try
+			{
+				if (statusCode > 0)
+				{
+					out.write(Reasons.getReasonPhrase(statusCode));
+				}
+				else
+				{
+					out.write(Reasons.getReasonPhrase(pageContext.getErrorData().getStatusCode()));
+				}
+			}
+			catch(NullPointerException npe)
+			{
+				if (defaultValue != null)
+				{
+					out.write(defaultValue);
+				}
+				else
+				{
+					out.write("");
+				}
+			}
+		}
+		catch (IOException e)
+		{
+			// Ignore.
+		}
+	}
+
+	/**
+	 * Sets the status code.
+	 *
+	 * @param statusCode The status code.
+	 */
+	public void setStatusCode(int statusCode)
+	{
+		this.statusCode = statusCode;
+	}
+
+	/**
+	 * Set the default value.
+	 *
+	 * @param defaultValue The default value.
+	 */
+	public void setDefault(String defaultValue)
+	{
+		this.defaultValue = defaultValue;
+	}
+
+}