package com.fasterxml.jackson.core.util;

import java.io.IOException;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.PrettyPrinter;

PrettyPrinter implementation that adds no indentation, just implements everything necessary for value output to work as expected, and provide simpler extension points to allow for creating simple custom implementations that add specific decoration or overrides. Since behavior then is very similar to using no pretty printer at all, usually sub-classes are used. 

Beyond purely minimal implementation, there is limited amount of
configurability which may be useful for actual use: for example,
it is possible to redefine separator used between root-level
values (default is single space; can be changed to line-feed).
 Note: does NOT implement Instantiatable since this is a stateless implementation; that is, a single instance can be shared between threads. /**
 * {@link PrettyPrinter} implementation that adds no indentation,
 * just implements everything necessary for value output to work
 * as expected, and provide simpler extension points to allow
 * for creating simple custom implementations that add specific
 * decoration or overrides. Since behavior then is very similar
 * to using no pretty printer at all, usually sub-classes are used.
 *<p>
 * Beyond purely minimal implementation, there is limited amount of
 * configurability which may be useful for actual use: for example,
 * it is possible to redefine separator used between root-level
 * values (default is single space; can be changed to line-feed).
 *<p>
 * Note: does NOT implement {@link Instantiatable} since this is
 * a stateless implementation; that is, a single instance can be
 * shared between threads.
 */
public class MinimalPrettyPrinter
    implements PrettyPrinter, java.io.Serializable
{
    private static final long serialVersionUID = 1L;

    protected String _rootValueSeparator;

    
Since:
2.9/**
     * @since 2.9
     */
    protected Separators _separators;

    /*
    /**********************************************************
    /* Life-cycle, construction, configuration
    /**********************************************************
     */

    public MinimalPrettyPrinter() {
        this(DEFAULT_ROOT_VALUE_SEPARATOR.toString());
    }

    public MinimalPrettyPrinter(String rootValueSeparator) {
        _rootValueSeparator = rootValueSeparator;
        _separators = DEFAULT_SEPARATORS;
    }

    public void setRootValueSeparator(String sep) {
        _rootValueSeparator = sep;
    }

    
Since:
2.9/**
     * @since 2.9
     */
    public MinimalPrettyPrinter setSeparators(Separators separators) {
        _separators = separators;
        return this;
    }

    /*
    /**********************************************************
    /* PrettyPrinter impl
    /**********************************************************
     */

    @Override
    public void writeRootValueSeparator(JsonGenerator g) throws IOException
    {
        if (_rootValueSeparator != null) {
            g.writeRaw(_rootValueSeparator);
        }
    }

    @Override
    public void writeStartObject(JsonGenerator g) throws IOException
    {
        g.writeRaw('{');
    }
    
    @Override
    public void beforeObjectEntries(JsonGenerator g) throws IOException
    {
        // nothing special, since no indentation is added
    }

    
Method called after an object field has been output, but
before the value is output.

Default handling will just output a single
colon to separate the two, without additional spaces.
/**
     * Method called after an object field has been output, but
     * before the value is output.
     *<p>
     * Default handling will just output a single
     * colon to separate the two, without additional spaces.
     */
    @Override
    public void writeObjectFieldValueSeparator(JsonGenerator g) throws IOException
    {
        g.writeRaw(_separators.getObjectFieldValueSeparator());
    }
    
    
Method called after an object entry (field:value) has been completely
output, and before another value is to be output.

Default handling (without pretty-printing) will output a single
comma to separate the two.
/**
     * Method called after an object entry (field:value) has been completely
     * output, and before another value is to be output.
     *<p>
     * Default handling (without pretty-printing) will output a single
     * comma to separate the two.
     */
    @Override
    public void writeObjectEntrySeparator(JsonGenerator g) throws IOException
    {
        g.writeRaw(_separators.getObjectEntrySeparator());
    }

    @Override
    public void writeEndObject(JsonGenerator g, int nrOfEntries) throws IOException
    {
        g.writeRaw('}');
    }
    
    @Override
    public void writeStartArray(JsonGenerator g) throws IOException
    {
        g.writeRaw('[');
    }
    
    @Override
    public void beforeArrayValues(JsonGenerator g) throws IOException
    {
        // nothing special, since no indentation is added
    }

    
Method called after an array value has been completely
output, and before another value is to be output.

Default handling (without pretty-printing) will output a single
comma to separate values.
/**
     * Method called after an array value has been completely
     * output, and before another value is to be output.
     *<p>
     * Default handling (without pretty-printing) will output a single
     * comma to separate values.
     */
    @Override
    public void writeArrayValueSeparator(JsonGenerator g) throws IOException
    {
        g.writeRaw(_separators.getArrayValueSeparator());
    }
    
    @Override
    public void writeEndArray(JsonGenerator g, int nrOfValues) throws IOException
    {
        g.writeRaw(']');
    }
}