Port to java 17

[ccsdk/apps.git] / cadi / core / src / main / java / org / onap / ccsdk / apps / cadi / util / Vars.java

diff --git a/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/util/Vars.java b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/util/Vars.java
new file mode 100644 (file)
index 0000000..0609efd
--- /dev/null
+++ b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/util/Vars.java
@@ -0,0 +1,120 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.ccsdk
+ * ===========================================================================
+ * Copyright (c) 2023 AT&T Intellectual Property. All rights reserved.
+ * ===========================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END====================================================
+ *
+ */
+
+package org.onap.ccsdk.apps.cadi.util;
+
+import java.util.List;
+
+public class Vars {
+    /**
+     * Simplified Conversion based on typical use of getting AT&T style RESTful Error Messages
+     * @param text
+     * @param vars
+     * @return
+     */
+    public static String convert(final String text, final List<String> vars) {
+        StringBuilder sb = new StringBuilder();
+        Object[] array = new Object[vars.size()];
+        convert(sb,text,vars.toArray(array));
+        return sb.toString();
+    }
+    /**
+     * Convert a format string with "%s" into AT&T RESTful Error %1 %2 (number) format
+     * If "holder" is passed in, it is built with full Message extracted (typically for Logging)
+     * @param holder
+     * @param text
+     * @param vars
+     * @return
+     */
+    public static String convert(final StringBuilder holder, final String text, final Object ... vars) {
+        StringBuilder sb = null;
+        int idx,index=0,prev = 0;
+
+        if (text.contains("%s")) {
+            sb = new StringBuilder();
+        }
+
+        StringBuilder[] sbs = new StringBuilder[] {sb,holder};
+        boolean replace, clearIndex = false;
+        int c;
+        while ((idx=text.indexOf('%',prev))>=0) {
+            replace = false;
+            if (clearIndex) {
+                index=0;
+            }
+            if (sb!=null) {
+                sb.append(text,prev,idx);
+            }
+            if (holder!=null) {
+                holder.append(text,prev,idx);
+            }
+
+            boolean go = true;
+            while (go) {
+                if (text.length()>++idx) {
+                    switch(c=text.charAt(idx)) {
+                        case '0': case '1': case '2': case '3': case '4':
+                        case '5': case '6': case '7': case '8': case '9':
+                            index *=10;
+                            index +=(c-'0');
+                            clearIndex=replace=true;
+                            continue;
+                        case 's':
+                            ++index;
+                            replace = true;
+                            continue;
+                        default:
+                            break;
+                    }
+                }
+                prev = idx;
+                go=false;
+                if (replace) {
+                    if (sb!=null) {
+                        sb.append('%');
+                        sb.append(index);
+                    }
+                    if (index<=vars.length) {
+                        if (holder!=null) {
+                            holder.append(vars[index-1]);
+                        }
+                    }
+                } else {
+                    for (StringBuilder s : sbs) {
+                        if (s!=null) {
+                            s.append("%");
+                        }
+                    }
+                }
+            }
+        }
+
+        if (sb!=null) {
+            sb.append(text,prev,text.length());
+        }
+        if (holder!=null) {
+            holder.append(text,prev,text.length());
+        }
+
+        return sb==null?text:sb.toString();
+    }
+
+}