add HttpContentTypeAndCharset

src/main/java/org/cobbzilla/util/http/HttpContentTypeAndCharset.java

@@ -0,0 +1,46 @@
+package org.cobbzilla.util.http;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import lombok.experimental.Accessors;
+
+import static org.cobbzilla.util.daemon.ZillaRuntime.empty;
+
+@NoArgsConstructor @AllArgsConstructor @Accessors(chain=true)
+public class HttpContentTypeAndCharset {
+
+    @Getter @Setter private String contentType;
+    public boolean hasContentType () { return !empty(contentType); }
+
+    public boolean isContentType(String type) {
+        return hasContentType() && contentType.equalsIgnoreCase(type);
+    }
+
+    @Getter @Setter private String charset;
+    public boolean hasCharset () { return !empty(charset); }
+
+    public boolean isCharset(String cs) {
+        return hasCharset() && charset.equalsIgnoreCase(cs);
+    }
+
+    public HttpContentTypeAndCharset (String val) {
+        if (!empty(val)) {
+            final int semiPos = val.indexOf(';');
+            if (semiPos == -1) {
+                contentType = val.trim();
+            } else {
+                contentType = val.substring(0, semiPos).trim();
+                if (semiPos < val.length()-1) {
+                    for (String part : val.substring(semiPos + 1).split(";")) {
+                        final String[] params = part.split("=");
+                        if (params.length == 2 && params[0].equalsIgnoreCase("charset")) {
+                            charset = params[1].trim();
+                        }
+                    }
+                }
+            }
+        }
+    }
+}