universal: pretty print

experimental/src/main/kotlin/net/corda/contracts/universal/PrettyPrint.kt

@@ -0,0 +1,126 @@
+package net.corda.contracts.universal
+
+import java.math.BigDecimal
+import java.time.Instant
+
+/**
+ * Created by sofusmortensen on 30/12/2016.
+ */
+
+
+
+class PrettyPrint
+{
+    val sb = StringBuilder()
+
+
+    // fun print
+}
+
+
+
+fun prettyPrintPerInstant(per: Perceivable<Instant>, indentArg : Int) {
+
+    val sb = StringBuilder()
+
+    var indent = indentArg
+
+    when (per) {
+        is Const -> {
+            print("\"${per.value}\"")
+        }
+        is StartDate -> {
+            print("startDate")
+        }
+        is EndDate -> {
+            print("endDate")
+        }
+        else -> print(per)
+    }
+}
+
+fun prettyPrintPerBD(per: Perceivable<BigDecimal>, indentArg : Int) {
+    var indent = indentArg
+
+    fun println(message: Any?)
+    {
+        repeat(indent, { print(' ')})
+        System.out.println(message)
+    }
+
+    when (per) {
+        is PerceivableOperation<BigDecimal> -> {
+            prettyPrintPerBD(per.left, indent + 2)
+            when (per.op)
+            {
+                Operation.PLUS -> print(" + ")
+                Operation.MINUS -> print(" - ")
+                Operation.DIV -> print(" / ")
+                Operation.TIMES -> print(" * ")
+                else -> print(per.op)
+            }
+            prettyPrintPerBD(per.right, indent + 2)
+        }
+        is Const -> {
+            print(per.value)
+        }
+        is Interest -> {
+            println("Interest(")
+            prettyPrintPerBD(per.amount, indent + 2)
+            print(", \"${per.dayCountConvention}\", ")
+            prettyPrintPerBD(per.amount, indent)
+            print(", ")
+            prettyPrintPerInstant(per.start, indent)
+            print(", ")
+            prettyPrintPerInstant(per.end, indent)
+            print(")")
+        }
+        else -> println(per)
+    }
+}
+
+fun prettyPrint(arr: Arrangement, indentArg: Int = 0) {
+
+    var indent = indentArg
+
+    fun println(message: Any?)
+    {
+        repeat(indent, { print(' ')})
+        System.out.println(message)
+    }
+
+    when (arr) {
+        is Zero -> print("zero")
+        is RollOut -> {
+            println("rollout(\"${arr.startDate}\", \"${arr.endDate}\", Frequency.${arr.frequency}) { ")
+            prettyPrint(arr.template, indent + 2)
+            println("}")
+        }
+        is And -> {
+            for (it in arr.arrangements) {
+                prettyPrint(it, indent + 2)
+            }
+        }
+        is Continuation -> {
+            println("next()")
+        }
+
+        is Obligation -> {
+            println( "\"${arr.from.name}\".gives( \"${arr.to.name}\", ")
+            prettyPrintPerBD(arr.amount, indent)
+            println( ", ${arr.currency})" )
+        }
+        is Actions -> {
+            println("actions {")
+            indent += 2
+            for (it in arr.actions) {
+                println( "\"" + it.name + "\" anytime {")
+                prettyPrint(it.arrangement, indent + 2)
+                println( "}" )
+            }
+            indent -= 2
+            println("}")
+        }
+        else -> println(arr)
+    }
+}

experimental/src/test/kotlin/net/corda/contracts/universal/Cap.kt

@@ -164,6 +164,8 @@ class Cap {
 
     @Test
     fun issue() {
+        prettyPrint(contractInitial)
+
         transaction {
             output { stateInitial }
             timestamp(TEST_TX_TIME_1)